The qualities of a good writing are following.
Clarity: The written word or sentences are clear and easily understood by anyone. The meaning of words should be clear. Precise: The precise is very important because unnecessary writing is and too lengthy passage loses its value. Correctness: The written material is correct in every aspect. Like its spelling are correct. The use of tenses is correct and preposition is rightly used.
The passage is neat. The hand writing is clear and easily readable. Ambiguity: There should not be any ambiguity regarding written material. Composition: The words used are easy understandable and their meaning is not vague. Correct words are used which fits best. Good writing is effective and fulfils the purpose of writing.