Another thing I like about this pic is that while she's clearly bigger than usual it's because she's pulling a most muscular pose, rather than her muscles just being massively, massively huge like in some of your other really extreme pics. It's a size that, while we don't see her at too often, she could reach if she wanted to, as is the case here, so it's effectively still a "canon" pic, if you want.
Just something I thought was cool beyond the inherent coolness of everything else about it.
Wow!, nice! her face expression says it all, well I think you could have added more definition on her pecs... that could be explained because of her great breasts but appart from that this is a master piece instant