I really think the PBG-2 has a lot of potential. As it is, it's a pretty cool looking guitar, but I think these additions could take it to another level:
- Neck & body binding
- Flame or quilt veneers
- Contoured top (like a PRS or LP)
- Baritone scale length neck
- Semi hollow version with F holes
- Different trem styles (Bigsby might look classy)
I've probably missed a few cliches out, but you get my drift.