Those don't look handpainted - especially the cloth. They look like you ran them through filters. Not sure about the bark, it just doesn't look like bark. Why not try a handpainted texture from scratch? It'll take time, but it'll look more convincing!
In my personal opinion, I love using photography for the handpainted texture look - but the photographs would be used as masks and/or brushes. Not to be used for slapping on the texture and calling it done (not saying you did that here). As for these specific pieces you've showed, the rock looks most convincingly…
the whole Idea of handpainted textures is not to use photos use the paint brush tool from any programm pick colors and paint save filters for later ( IF??? you want painted texture look )
If you're going to try to turn a photo into a handpainted texture, you're going to need to paint over it a lot more and use filteres a lot less. And know what you're painting. Pay close attention to edges! http://www.conceptart.org/forums/showthread.php?t=51913
to the OP: are you actually looking at some handpainted textures for reference? or just blindly trying things and hoping something comes out of it? you should know yourself if something looks better or worse, compared to what you're aiming for. that is, unless you don't know what you're aiming for..
To emulate oil pants you're going to want to just pick your colours from the colour palette and canvas and just paint everything stroke by stroke. It's quite simple really, think about what you want to do. You want to make it look like someone actually painted that stroke by stroke? Well... paint it, stroke by stroke! Most…