Thanks so much!
Have you taken a look at these sci-fi and alien tilesets yet? They get a little lost among the others, lol. I would like to expand that series a little bit though, we've had a few requests for alternate sci-fi aesthetics.
Most of these tilesets come with 32px alternatives that should be VX Ace ready (they just don't have sample maps). If for some reason they don't work out for you let me know and I'll get it fixed.