Hey sir, I see you also like cows 🐄.
The core concept of your game is good but I think there are just some balancing issues, upgrades require a lot of milk and it takes too long to get it. Combine that with a sluggish movement system and it doesn't keep the player engaged. Honestly, a zippier movement system and scaled-down upgrade requirements would make this much more fun! For only ~10 days though it's good!