If you look at the attached image, you'll see that the "bunker" image I've got, for the life of me I cannot fit in nicely between the top and bottom "border". It overlaps at bit at the top, and there's too much space below.
I've fiddled with image size, canvas size. When I get the correct image size, when I copy the layer over, it centers it perfectly top to bottom, but when I drop it over to the left where I want it, the image automatically snaps to the top or bottom of the canvas.
What the heck am I doing wrong?!?