Hello, and thanks for your offer. The current pixel art that I am using is at this link ( https://scrabling.itch.io/pixel-isometric-tiles/devlog/563474/pack-is-now-free ). Since it's 32x32 pixels, there is little room for improvement but if you want to experiment on some pixel art for use, please see that link and modify the 'Spritesheet.png' file however you see appropriate. There are probably some code things I would need to do in order to implement tile height and larger tiles, but I doubt I will put the time in to code for that. Ultimately, if you modify the sprite sheet from that tile set, all I should need to do is replace that file ( I might even make an option to choose either of different sprite sheets in the game if your tile set wants to completely change the look ).
Also, I'm currently only using a flat static pixel character but I would be on board with modifying that aspect if you wanted to provide pixel art for the main character. It could be it's own sprite sheet with as many animation frames as you like. Since the character moves diagonal in isometric fashion, perhaps that could be implemented. Also, (not planning on more code to change the game at this time), since the character moves block by block, any character animation should represent idle standing, perhaps in those isometric directions. Attached here are two files; a flat player image that I use now - I add the cat head to it, and notice it has a hand where it holds things , and an example sprite sheet that could almost be used for a character that would be moving in the Q direction ( Isometric up and to the left ). That player sheet is also 48x48 instead of 32x32 by the way. (that character sprite sheet is only an example since it is holding a sword and geared for actual movement and not idle standing - Ideally the player should be more appropriate for this alchemy themed jam).
If you wanted, you could create all 4 directions of a character that is idle (but slightly animated (not necessarily walking) and exhibits those directions on a sprite sheet. I could then use that to replace the flat character. If you use 48x48 (and numerous images on single line for different frames) or even 64x64, I could scale them down for the 32x32 gameplay.
Well, there are still over 21 days left, so if you do something, I would still hope to have time to plug them in to the published game.
P.S. Perhaps next time I'll try to find a pixel artist ahead of time. It's probably too late now, but ideally this game could look a lot better with a dedicated pixel artist and perhaps 64x64 images. Probably too late for those changes at this point.