Hey I love it!
But I wanna change some things about the novelties.
Why have only 1u novelties for R2? Wouldn't it be better to have a 1.5 replacement for tab?
Also with R3, apart from enter, you need one for caps lock.
For R4, I'd love to have a 2.75u shift novelty. How about the vaulting pole?
I'd also love an ISO enter with the axe.