I am wondering what is the limit, if any, of justifying one's writing style as being creative.
I have often seen the use of a single word or phrase as a 'sentence' for creating impact. Example: "It was a large knife. Sharp and shiny."
Some other examples are starting a sentence with a conjunction (e.g. and) and using one sentence paragraph.
Question: Is it justifiable to disregard grammar rules for a specific creative purpose such as creating impact in the minds of readers?
Note: The above is usually not a problem to a person who does not speak English as his/her first language. English is my fourth language and I can tell you that. However, it may appear incomplete or incorrect to someone whose first language is English.