I'm a bit new to blender, but I been working on this for about a week now and big hangup came once I got textures applied to the model.
It's hard to see, but there are visible seams in the rendered image down the center of the model, and mirrored seams in the shape of a 'V' on the chest. On top of that, the textures become more blurry as you zoom out. Obviously, neither of these problems are present in the unrendered view. (Before anyone asks, everything is set to Blender Render.)
The only advice I saw for blurring was making sure the mapping was set UV, which you can see from the picture that it is. The blurring and the seams may be unrelated but they are both hampering my progress severely, so any help would be much appreciated.
Update: For better reference- I drew arrows pointing to the lines in which I'm referring to. I'm sorry they are faint but they become more noticeable as you zoom out. At first I thought they might have had to do with mirroring the model across the x axis, but the V shape under the circle in the chest disproves that theory, and there is also line around one of the edge loops for the knee.
My knowledge of the program is limited so if you need me to explain more I'll do the best I can.