Worst thing? Nah bro. The ui looks really good. I like the orange part transitioning into yellow. I just dont think equipment should be there. Just make inventory bigger and at the bottom make it like a tab where you can put the equipment the players holding. But other then that, looks good bro.
Pretty nice, I like the gradients, however the text looks a bit odd, as it has an outline (I think) try using text without an outline, the font “Gotham Semibold” Will look amazing with this. The healthbar also does not match, consider making the healthbar a lighter red, and changing the text from black to white.
The inventory, healthbar and rank ui didnt get as much criticism, it was mostly the equipment ui. I left the rank and healthbar the same, changed the text on the equipment and inventory title, and made alot of changes to the actual equipment menu.
Whenever I have issues like this, I go look at games similar to what I’m making. What do they do in terms of UI? If there’s one that I really like, I might take a screenshot of it, make some measurements and apply it to my game (with my own personal touch, of course).
In the end, there’s not a single “right answer” when it comes to UI. As long as it’s pleasing to the eye and easy to follow, you’re good.