how do i make a pic not look like its copy/paste i mean... its not but how do i blend it well with every thing?? x[

Just, use some filters, play around, and try to make it ur own design.

there's several methods, usually you want to get rid of colour outlines (i.e a white outline of your render) before you start doing anything.
to blend it better you can either cover it in effects such as brushes, c4d renders etc.. you can alsoslightly erase with a softbrush in the edges of your render.
it's basically to try different things out

gl

the smudge / blur tools are your friends.

vouch i love smudge tools it makes all my sigs look gr8