Candidates should seek constructive feedback focused on specific elements of their writing style in UPSC answers. This includes clarity of expression, coherence of arguments, and the use of effective examples. Feedback should also address the candidate's ability to engage the reader and present comprehensive analyses of issues. Additionally, they should inquire about proper structuring of answers—introduction, body, and conclusion—to ensure balanced responses. Improvement in language use, vocabulary, and adherence to the word limit are also vital aspects to consider for refining one's writing style in UPSC answers.