On the Angel community, I think the tetras would be fine, just make sure they're not young and small when the Angels are big. Rather, the Corydoras and Swords might not fit so well. Loricarids are good with Angels. A nice simple community would be:
Angel Fish: 2 (12")
Black-Skirt Tetras: 5 (13")
Bristlenose Pleco: 1 (6")
A headstander would be cool, too.
For the Apisto tank, I'd probably go with Cardinal or Neon tetras rather than Lemons. Anyway, this would definitely be a pretty cool-looking tank.