While this is a lovely set, I could order from my local IT store the more or less exact same layout/colours, caps in great PBT quality (better than GMK, IMHO), get a Varmilo keyboard thrown into the deal, and pay way less than I'd have to shell out for this set. Plus I'd have it tomorrow. The design and colours look lovely, but it's so close to Varmilo's design (and in ABS) that it would make no sense to even consider buying, no matter how great it looks.
Also, if Varmilo decides that they are not too happy with seeing a GMK set that close to their design, it could potentially be a IP problem. GMK is recently shutting down sets that even skirt close to it (Retrowave for example). Varmilo's Panda board is a pretty iconic design.