Thanks! Glad you like the stuff
Feel free to use/mod anything you want from this thread.
Every time I start a new tileset, I also start building a test screen (the same ones I post here as samples) that I use to try out the new tiles as I draw them, and also to help me decide what else I should add to the set when I run out of ideas. Sometimes, this has the added benefit of giving me ideas for using my own tiles in ways different than I originally planned, which is actually what happened with those window frame thingies you see on the screenshot (at first, I simply intended for those to be placed on the ceiling as additional detail).