Well it's not a Japanese beetle so that's only 7,999,999 to go. :-) It's just hanging out and buzzing around slowly. It was fighting/mating with a 2nd one yesterday.

I would say it is a type of leaf beetle,family chrysomelidae. Most species feed on a very specific type of tree so that would be a way of narrowing down the species, e.g., cottonwood leaf beetles feed on willow, poplar and alder (as per simon and schusters guide to insects).

Hello — I’m pretty certain it’s a Tarnished Plant Bug (nymph), Lygus lineolaris.

Impossible to tell just looking at a designer's inspiration photo. But I am 95% sure those are concrete pavers and not natural stone or tile. In which case, every manufacturer of masonry landscaping products will offer something very similar, if not an exact duplicate. Belgrade is a big name and well known but there are many, many others.