I saw your game from Roblox developer challenge of theme parallelizm. And from that time, I see small changes, but lots of rate my UI designs posts with little to no changes in images. I maybe wrong with this statement, but that’s what I see lots of times in your posts.
Most of your guis are not fit the one theme, and that’s main reason to rate it down. Consistency is thing you need. Just look at your money, coins, and other gui sections. They all look like jigsaw puzzle with mixed parts.
Next, text on your buttons are unreadable. It’s thin, and blends with background images.
Third - most of game guis are overcomplicated. Where simple button with rounded/beveled corners will look perfect, you overcomplicate and add “U” shape to it. This hurts look and readability of text a lot.