These look great. I get an SMB3 vibe from them, which is good, since you're using SMB3 Mario & sprites. The ? blocks look a bit weird, but I may just need to see them in action.
C3 is overrated. So just have a bunch of random screens from a hack instead!
~Ingame Screens~
1-1: Grasshopper Heights:
1-S: Lines of Chaos:
Castle #4: Burning Cold Castle:
~In Lunar Magic~
Castle #1: Foliage Fort
I like outdoor castle levels.
3-2: The Chuck Hole
Still a WIP