Thank you for your feedback, Spoon!
I'm definitely gonna be touching up the environments a bit. As for the difficulty, that's something I'm probably not gonna muck about with too much, although I may add difficulty settings somewhere down the line.
Following party members would be neat, but it's not something I'm keen on implementing, sorry -- I know that's a drag, but please understand that this game's gonna feature upwards of 200 monsters, and making overworld sprites for all of them would be a bit of an undertaking for me.
As for dialogue portraits, though, you'll be happy to know that those are already in the works. They're gonna be more in the vein of the GBA Fire Emblem games than Undertale. Look forward to it!
Again, thanks so much for playing my game, and I appreciate your input. You're awesome.