Selling Models?

I think you just need more complex models. Your models are very good for what they are, but they are models many artists could make given a few hours. The models that sell best are the ones that save the buyer at least a few days work. For these you can charge much more than you currently do.

Build more complex models that take at least a week to make.

Yeah....I'm sure that'd work, but I want to sell what I've got :D

i would like to know that my self

Here I do to model difficult qualitative for the press and nobody buys something. It seems to me favourably only to founders of a site