OK, thanks to everyone who replied. I appreciate the feedback and advice. In my products I always try to emphasise customisability mainly in the texture department. If anyone has actually bought any of my recent products they will know I include tutorials on how to customise the textures (or designs as per my 2d products). I think that the problem is that I'm not showing people that things can be customised in my promos. That might increase sales. Sadly, I am doing this for some sort of income so I might need to look for alternatives to my creative skills. Sigh....
I also split my time making some video tutorials and that's a bit tiring, too. You can check them out at http://www.youtube.com/user/MixMashCom if anyone is interested.

Although, I think maybe I'll give a few more products a try first. Skimpy outfits, huh? I think I might give that a go.

Don't worry about the morph question previously. I'll ask that in a new thread maybe. It's not really that important, though.

Thanks again to everyone for their feedback .

Cheers,
Paul