What kind of UI are you looking for? What engine are you using? I've created a few games for fun in UE4/5 as well as helped people make their indie films using UE5. You can see my work here
Artwork made for indie films https://www.artstation.com/ramiro1134
One of a few games I've made, including fully custom UI menus/titles, etc https://gamejolt.com/games/Dollhouse/701508