Hi, cute set, I like the pastels and the novelties are adorable.
My feedback will focus on small details to clean stuff up.
Base
-You don't need both terminal and UK iso. You can cut R3 and R4 pipe.
-Pink mod arrows is kinda awkward here, I recommend changing them to the purple accent color.
-Remove R1 1u Back it's not needed in base. Move it to 40s.
-Consider making caps lock and shift icons vertically centered for more consistency across the mods.
Numpad
-I recommend moving R1 pg dn and end to the numpad kit, as they only go with 1800 layouts that use numpad.
-Consider rearranging your colors, especially on the 0 and . keys. Pull up a full size board and do a couple test renders and see what color placement you like.
I'll leave it there for now so it's not so overwhelming. Feel free to reach out on discord if you have any questions. GLWIC!