I've already seen some new screenshots on Discord, but I'm gonna say it right here. It's looking very good as of now! I think the bonus section of 2-6 has way too similar foreground and background palettes. Also, it's nice TheJullasicFox made a few ports for you!I have a Discord server as well!
Have you considered looking into FLStudio? Also regarding your compositions. Well, they're empty, they're melody but that's about it. I think you might want to improve your composition skills before you compose stuff for other people. Three channels isn't a lot to go on, and could become really stiff to listen to very quickly. Three channels is okay for ambiance or something similar, but for something energetic like a full level, I recommend using all eight or at least six of the channels. All in all, it really needs work.
Looking for anybody to port some songs from Metroid Fusion, specifically 3 songs: "SRX", "TRO" and "AGA".
The cave tiles look really messed up with weird mirrored tiles and what not. The new icons look fine even though some of them are hard to notice (mainly because it's just an 8x8 space you are using what can't really be changed sooo). The Larry sprite is looking neat too.
Though my favorite has to be that image:
I just really dig this background. It looks amazing!
Oh and since I am here again I might just want to say again that I am very happy to see a lot of improvements regarding your hacking skills over the year. Keep it up!
Two last overworld icons are messy, particularly the last one. It's hard to notice what kind of a flag it is. The evil face shouldn't have the black outline. If you remove the black outlines which complicate anything from two last icons, it'll be easier to notice the details.I have a Discord server as well!