I've never made anything like this nor would I know how to.
As you noted on your game page, it's a little rough around some edges, but the concept and the execution for carving that you were able to achieve is very cool. Clearly you have some model deformation...not just sprite decals (or something).
The concept is very nice. I like the details you've included like endless mode and showcasing all the pumpkins on the table when complete. It would have been nice to have more variation in the shape & size of the base pumpkin each time you hit 'next'
I also liked how you could zoom-in...it was the first thing I wanted to do...and you could! Maybe starting more zoomed in would make sense.
As an aside, I had to play it in browser that had no music. I saw your game page notes about the issues with the browser version, so it's understandable. I see lots of positive comments about music below. I did try to download the Windows version, however, I got the 'thanks for downloading' window, but no download. My browser and AV have not been blocking downloads for other games.
Nice submission.