Part 1
The first thing I did was select the quick mask to create a quick outline. I then tried it into a selection and went back and forth until I thought it was a good balance in the image and the selection. I then redefined the edges and added some feathering and smoothed out the edges so that it would add detail to the guy and blend it well with the background. After that I placed the guy on the background and the image was created.
Part 2
I opened the image of Toronto and went right to the adjustment layers. I changed the whole image to black and white. I then took the paint brush and brushed the color back into the water and some buildings.
Part 3
I opened bridge and selected the 5 images. I went to tools, photoshop, and selected photo merge. It processed and then all I had to do was crop it.
