I'm diggin' those palettes. I like how some things use colors other than the ones usually assigned to them (like the piranha stems and the moles). And I actually like how the outlines of the question/turn/brown blocks look in the title screen (and in your submap as well); very apart from the usual dark outline we always see...
I'm not sure if you're keeping the map you last showed, by the way, but I can spot issues on the perspective. The terrain looks much more plain than it looks like a slope (which is a normal thing for SMW's graphics), so it's weird that the bottom walls between the land and the ocean are way taller than that little extension around the top right.
It's easily the best thing I've done
So why the empty numb?
I'm not sure if you're keeping the map you last showed, by the way, but I can spot issues on the perspective. The terrain looks much more plain than it looks like a slope (which is a normal thing for SMW's graphics), so it's weird that the bottom walls between the land and the ocean are way taller than that little extension around the top right.
It's easily the best thing I've done
So why the empty numb?