There aren’t a lot of small scale scenery tutorials out there, either as videos or traditional blog post writeups. Viv on RubbishInRubbishOut, though, did some YouTube videos of Dystopian Wars scenery a few years ago, and it turns out that DW is in something approximating 1/1200 scale, more or less.
Dystopian Wars table intro, painting & finishing the table, islands part one, and finally islands part two.
Also, Dispatches from the Front has been working on some fantasy naval scenery for Man’O’War using the Brigade Models buildings and it looks fantastic. Fantasy microscale terrain has a definite appeal, you can get grandiose epic terrain on the table that wouldn’t work at all in any larger scale!