I think the
⎇ legend would look better without the arrow at the top. The Fn/Menu legend also looks off, like a squished letter xi in a serif font (
Ξ). Try making it more like
≡.
There is also what appears to be
three 1.75u spacekeys in the spacebar kit. Since you don't have 40s compatibility in the set, you actually don't need
any of them
(1.75u is only used on a very limited number of 40% keyboards.)
