I like the graphics a lot, although i had a lot of problems,
The tutorial text image is far too big and isn't scaling correctly so i couldn't read half of it.
Also the main menu buttons "hitboxes" are off by a lot, Guessing that's also down to scaling problem.
Also not sure if intentional or not, but you have uploaded your entire source code and not just the playable version, if intentional, would be nice to split them up as seperate downloads as 115MB download to play is quite a lot. I would recommend creating a build as WebGL and upload a playable version in the browser too.