Nicholas Higham's book _Handbook of writing for the mathematical sciences_ is detailed, clear, and overall very useful. He covers all the four bullet points that you have raised. Moreover, he gives an annotated reference to useful style guides, technical writing guides, dictionaries, and so on. I am sure you won't be disappointed!
**Edit:** I guess you might already be familiar with the classic: _The Elements of Style_ by Strunk & White --- this book is a gem on writing, and is worth reading again and again every few months.
Finally, here is a paper with very practical advice. This paper really underscores the importance of structure, and offers concrete advice on how to attain good structure: _The Science of Scientific Writing_ , by G. D. Gopen and J. A. Swan. The fundamental thesis of the paper is: Writing to meet the reader’s expectation.