One of the big problems with doing really close ups is that the perspective gets distorted. This is due to the curvature of the lens. In the first photograph you can see that the tree looks like it is leaning to the right while the building is basically straight.
The first step is to split the photo into a few layers using the magic lasso. I did three layers. 1) the tree 2) the minifig 3) the area where the wall is darker
Once the layers are created they can be individually rotated (the tree) or enlarged (the minifig) or recolored (the dark wall) using the color dropper tool
The reason that I enlarged the minifig (other than it looks cool) is because it ghosted when I turned the tree a little bit. Having a bigger mini-fig covered up the edges.
The next step would be to blur the edges of the minfig so that it didn't look as artificial. Maybe I'll figure that out next. There is also a perspective tool within photoshop that is better at correcting things, but I'm not quite there yet. Baby Steps...
Ahhhhh...the wonders of Photoshop. I love that dang program like it was one of my children. One of my children that makes my butt look way smaller when I need it to, that is. Now all you need is your Wacom pen tablet to complete your techie ensemble and you'll be havin' as much fun as me.