Prototypes for R1 arrived.
Purple is a bit too bright / vibrant for my eyes, so probably will have that toned down slightly.
Other two colors are as I hoped.
Regarding the naming, you guys are on the dot - I named it Derivative because new boards are usually variations of existing boards. I can agree with some of the similarities, but I don't see a Corsa side.. though if I'm honest, I believe a keyboard is almost always going to have some basic atomic features that you can't avoid, for the sole fact that it's a keyboard. No matter how you break things down, some things are going to remain constant... like the fact that most are shaped like rectangles, have a weight, have handles to pick it up by, etc - that aren't super specific to one particular board; on the other hand some beautiful cues have clear originators, like the Jane's iconic backplate, the super clean Koala curve, etc.