Kitting needs work. No 1u numpad + and -, there's an r4 1.75u Control marked as 1.5u so you either have one too many 1.5u r4 Controls or you're trying to do Unix Control and you're entirely missing the row, r3 1u Code is pretty random, no 1u numpad 0.
Renders just look bad. They also have text + icon mods while your kitting image (the 2nd one with more caps) shows icon only mods. Renders also show Win as the winkey while the kitting image shows them as Super???
You're also using 5 custom colors with GMK, your set would probably take 2-3 years to color match at GMK's current speed considering GMK Red Dragon has received only 2 color samples since October 2020 when it ran.
Because of my limited drawing skills
Pro tip: you can exchange money for goods and services. This way you can get novelties and renders that are up to the community's standards done. I'm not sure the novelties you've done fit GMK's mold restrictions but you're the designer here, I guess.