I played with the first one, dodged the creases upped the contrast a little, increased saturation alot and sharpened it. On dog like this, I would go with an initial unsharp mask of 20/50/0 and that will increase contrast. I didn't do it on this jpg, because I like to do that on the larger ones. I sharpened this one with a little bit of smart sharpening to bring back out coat detail.