[description: a nude man poses on all fours in a field under bright, fluffy clouds]
Here's a nice trick to taking a great artistic nude photo. Don't just point the camera at a nude body and snap a picture. You can't neglect composition and framing. Set up a shot (whether it's indoors or outdoors, but this is especially effective for landscape nudes) that looks good even without the figure/model in it. (I guess as a self-portrait photographer, I have a leg up in this respect). Then, add the figure to the shot in a suitable location. (You will, of course, still want to make sure the lighting and the posing of the figure looks good). This way, you won't just have a nice picture of a naked body (which could describe a lot of low effort porn), but you'll have a work of art that anyone could appreciate! It's like writing out a good solid melody on an acoustic guitar before adding a lot of feedback. Sure, the feedback rocks, and takes the song to a whole other level, but you don't want to be accused of having all fluff and no substance.
[description: a nude man lies face up in the grass under a big, blue sky]
Also, a large part of the appeal of this particular scene isn't just the fact that I'm naked, but the fact that I'm naked outdoors, on a nice patch of grass, in the sunshine, under a bright blue sky with fluffy clouds. Context is key.