I think it looks really good however if I were to change something, it would be the cookie, I think it could be a bit more rounded out, other then that though, great job on this! How long did it take you?
It took me 2 hours because of some technical problems with textures. I actually had to colour the whole cupcake, and add the chocolate chips as well as the editing you can see I applied in ibis paint.
I understand some people would compare your GFX’s to some very high priced GFX artists but in my opinion this great, could use work but otherwise amazing.
Constructive Criticism
Cookie could be flattened around the sides.
Very empty and plain background, maybe a sky or some other scenery
Could add some more colour to make it stand out.
Conclusion
Could use some work but with fixes, I’d say it’d be amazing. Best of luck to you and your game?