I had a really fun time playing. I think that sewing encompasses the feeling of sewing on a machine quite nicely, and overall the whole experience of projecting the dresses is great. I also like the cozy, relaxing atmosphere.
Some things I would like to see (I don't know what you have planned, these are just some stuff that came to my mind during playthrough):
- more accessories, especially some belts would be nice
- something to do with money I earned, maybe more patterns to purchase, or a ruler to make drafting patterns straight easier
- maybe some more ways to decorate the dress, for example adding a trim or lace on some areas
Also, besides the bugs that people already pointed out in the comments, I noticed that in the menu there is no back or resume button (or at least I couldn't find it).