The problem as I see it is that I, not being a native English speaker, don't know a lot of useful expressions. I'd like to describe some things beautifully, eloquently, but I just can't make it through the language barrier... Not well enough, at least.I am afraid of using my own metaphors and poetic(?) collocations, cause I might use too much of my own language logic and in English it'd turn out to be funny, incorrect or incomprehensible
The second thing: dialogs. Very often I have an impression that my characters speek too formally; that I'm not that good at colloquial language.