1, i prefer to your mod, the yellow(GE1) in darker grey(CC), fabulous
2, are there no other mods in full set or seperate mod set? i know you may just make this set as cheap as possible, however 1.75 shift , stepped caps and wkl are almost requirements for GMK set? are you sure that this is the final mockup? more lay-out ,more audience but higher price, i think you would strike a balance
3,i also like your RO2 in this , may be you could weave more RO2 keys into the full set.
4, is yellow for alpha too bright and illustrious to make our eyes unpleasant when typing? i think the updated yellow(GE )may softer than other yellows, but it is better that we could see some real keycaps in this color to make sure that too bright yellow may not annoy our eyes.