David's Sketchbook ;)

[Fedodika]

well first thing i think is, you can make her boobs bigger to overlap more with her arms. Blur the shit out of the background, make the edges sharper on the underside of the boobs and sharpen the nipples since the light there happens to be the focal point. Her stomach also seems kind of sludgy and formless, maybe emphasize some of the rounder muscles around the naval, and even shade the naval, make it noticeable.

Don't worry too much about the grass or the leaves or all that stuff looking realistic, nobody really looks at that stuff.

Here's an example of doin grass right

http://jameszapata.deviantart.com/art/To...-508629462

Maybe make her bigger on the bench, or move the bench around so she's not dead center on the canvas. It seems like you're shading with black too sometimes which is not good, it makes colors looks burnt and muddy, shade with somewhat saturated colors ;) Look at ruan Jia or Tianhau Xu for an idea of what I'm talkin about

maybe also take advantage of the back having a cool light source and push that into her hair, like around the contours or around her shoulders, and maybe darken some areas of the bench because it looks like it was just plopped in there and isn't interacting with the enviro