Feedback:
_ Base kit:
1/ Please remove the first base kit, keep the second one.
2/ I suggest replace uk iso keys with basic iso (or terminal iso or usa iso: 1 R3 "\|" key and 1 R4 "<>" key) to lower the cost for all iso users since there are more than 1 iso layout.
3/ If you want to keep blue, I get it but you have to make it lighter, I suggest using teal or blue-green (or whichever shines the most) for alpha legends to display a more accurate space color.
_ Translucent kit: I think you should keep it and add space bars and some R1 keys perhaps. This is an interesting kit
_ Accent kit: please remove this since it's in base now.
_ Novelty: Please add the 1u R4 pair of UFO (black-white) to R1 since there are more use of R1 1u key than R4, you can keep them as R4 too but please also have them in R1. Please also design novelties for iso enters. Since you're using WS1 and CR, this novelty kit will pair well with every WOB or BOW set. Please see the attachment for better visualization.
_ Space bar kit: Need accent bars (standard and mini) here, I suggest you move all translucent keys to the translucent kit. That kit is a new implementation, let's buyer decide if they want new experience.