Just my thoughts, take of it what you will.
Honestly it all depends on your personal preference in this so I'd just say that you should form a bit of consistency with your skins. Like looking through your PMC gallery vs your skindex gallery, there was a large difference in not only posts but the quality. You seem to jump around from style to style a lot (I'm just taking a general look I didn't pay attention to upload dates) but even on your skindex account your style varies greatly. I would really suggest nailing down a set style for your skins and it's perfectly alright to try different styles and experiment but if you want to grow I'd try to nail something down rather than throwing everything out there and seeing what sticks, ya know?
Just my thoughts but I do like your work and your palettes and designs are really good in my opinion,