For me, getting a large viewing hits becuase of nudity or because of some gigantic female feature is not worth it because it really doesn't tell you what they think about your work. Even if I get considerably less hits because they are not naked, those hits carry more value to me because they actually took the time to look at my work for what it is.

Sometimes, I do however try to mix in some skin and show little more expossure of the body because it does create some excitement to the work and to break the norm.

As far as comments go, I am not sure how you can increase them because it looks like some images are commented quite alot as soon as they are uploaded and others are stranded and left alone even though they look quite stunning (at least to my eyes). I've seen some excellent renders by bryce and vue that had zero comments probably because they were not uploaded in poser section. So I guess number of comments doesn't really tell you how good or bad the work is.