The OP is very heavily tilted towards one direction. Old School fantasy art is probably better realized by, e.g., Larry Elmore. Not the crappy low rent stuff found in the original D&D books/modules.
I happen to like both, but I might be a bad example -- I also like anime and comic books as well. For most fantasy worlds, though, I think the Elmore-esque stuff is more appropriate. A lot of what the OP labels "new school" tends to be very over the top, which sets up unrealistic expectations and leads to a more do what is awesome Frank Franzetta universe. And, don't get me wrong, I love me some Franzetta, but it's hard to pin a coherent world around that stuff. Chris Stevens' construction crew and swashbuckler stuff fit perfectly fine, imho, though.
I get a lot of my inspiration from anime, especially the better ones. But, to say they are over the top for most fantasy purposes is a woeful understatement. Two things I do like about that source of inspiration, though, are (1) that the abilities and fights are very dynamic. The characters do neat things with their abilities and they interact in interesting ways, something that is often left out of the descriptions or game mechanics of fantasy RPGs. And, (2) characters have well-defined bailiwicks. The characters have a schtick, and one that isn't absurdly arcane to try and describe.