Differences Between B2, C1, and C2 Levels of Writing

Overview

"Last winter I went to Spain. I had a great time there. I met really interesting people."
Clear, no grammatical errors, but not native-sounding

"Last winter I went to Spain, where I had a very enjoyable time. I met some truly interesting people."
Combined sentences for fluency
Improved vocabulary: "enjoyable" instead of "great" and "truly" instead of "really"

"Last winter, I had the distinct pleasure of visiting Spain, where I had a truly enjoyable experience, as well as an opportunity to meet some extremely interesting people."
Sub-clauses used
Advanced vocabulary: "distinct pleasure," "truly enjoyable," "extremely interesting"

"I asked around to my colleagues about how they handled teaching to their classes. It seemed I was not the only one with a problem. They didn't have an answer to my problem, but I did feel better because now I knew I wasn't the only one with this problem. Then I decided to give my pupils a questionnaire with questions on how to make the English lessons more easy and more fun for them."
Clear but repetitive and monotonous

"I asked around to see how my colleagues handled teaching to their students. It seemed I was not the only one with a problem. They did not have an answer to my problem, but I did feel better knowing I was not the only one with this problem. I decided to give my pupils a questionnaire with questions focusing on how to make the English lessons easier and more fun for them."
Improved formality and fluency
Better vocabulary: "easier" instead of "more easy" and "knowing" instead of "now I knew"

"I inquired amongst my colleagues as to how they managed to succeed in teaching English to their students. And it quickly became evident that I was not the only one with this problem. Unfortunately, my colleagues did not have a ready answer to my problem. However, I did feel better knowing I was not the only one facing this particular difficulty. I decided to ask my pupils to complete a questionnaire I designed myself, requesting their input on how to make the English lessons easier and more enjoyable for them."
Advanced vocabulary and fluency: "inquired," "managed to succeed," "quickly became evident," "particular difficulty," "easier and more enjoyable"

"I discovered that sometimes a questionnaire is needed in the classroom. After I did one in my class and we agreed to change my teaching a little bit so they could learn better, I also did some with other classes. There were no big changes there. But anyway, it is good to ask for the pupil's point of view now and again. I find that for me it is the best way to know if and how I can make my lessons and my teaching better."
Clear but contains mistakes and lacks advanced vocabulary

"I discovered that sometimes a questionnaire is needed in the classroom. After I did one in class, and we mutually agreed on changing my teaching a little bit to accommodate their learning needs. I also did some with my other classes. There were no big changes necessary there, but nevertheless, it is good to ask for the point of view of students now and again. I found that for me, it is the best way to know if and how I can improve on my lessons and teaching."
Improved grammar and vocabulary: "mutually agreed," "accommodate their learning needs," and "improve on"

"I discovered that occasionally a questionnaire requesting input from learners themselves is the best course of action. Indeed it can be extremely beneficial to ask students directly what they think would be most effective as this creates a democratic and egalitarian method of learning. Doing so can also enable youngsters to take a greater level of control of their own learning process."
Removed unnecessary information
Advanced vocabulary: "occasional," "extremely beneficial," "democratic and egalitarian method"

"I have learned a lot on my present job at this company. In the world of aviation, it is important to stay accurate and do not make any mistake which could lead to an unsatisfied customer. I take care of the little details, which are easy to miss. I focus on customer service and go beyond the basic service expectation."
Clear but has grammatical errors and lacks advanced vocabulary

"I have learned a lot at my present job at this company. In the world of aviation, it is important to stay accurate and not make any mistakes, which could lead to customers being unsatisfied. I pay attention to details which are easy to overlook or dismiss as insignificant. I focus on customer service and go beyond basic service expectations."
Improved grammar: "not make any mistakes"
Enhanced vocabulary: "pay attention to details," "overlook or dismiss as insignificant"

"I have learned a great deal in my current position at this company. For instance, I now know that in the aviation sector, it is vital to maintain a high degree of accuracy. In addition, one should not make mistakes which could lead to customer dissatisfaction. I endeavor to pay attention to small details which are often easy to overlook or dismiss as insignificant. Additionally, I am customer service orientated and always strive to provide more than just the basics in quality service."
Advanced vocabulary and sentence structure: "a great deal," "current position," "one should not," "customer dissatisfaction," "endeavor"

Linking Words and Phrases: Ensure writing reads fluently and smoothly
Accurate Grammar, Punctuation, and Spelling: Crucial in academic writing
More Academic or Formal Vocabulary: Use less common, more sophisticated words
Overall Readability: Read the piece out loud to check for flow
Less Repetition: Vary sentence structures, use synonyms

Use linking words like "for instance," "in addition," "therefore"
Aim for diverse sentence structures with commas and sub-clauses
Choose varied vocabulary: "vital" instead of "important," "thus" instead of "that is why"

Hopefully, this tutorial has provided a clear idea of what advanced level writing entails. Good luck!