Maby it can be done by tracking the lader in Mocha and replace the sape, but it's a lot of work....
Two keying passes, two layers, a fractal noise layer, dummy layer (see pic) and an adjustment layer for color correction nested above your keyed footage. Depending on the movement of the ladder and the camera you may have to do some motion tracking.
Pay very close attention to how I set up the fractal noise layer. This took about 5 minutes. Here's a CS6 project file for you to take a look at. Just replace the missing photo with one you posted.
Use the other picture for the project and redraw the garbage matte and the same project file will give you this:
Very very good and fast!!!