Ah, beautiful mountain scenery. No doubt you are asking yourself, "How do we get a motorcycle up there?" The least we can do is answer in the affirmative.

The motorcycle in question. Duplicate the background layer of both photographs. Select > All and Edit > Copy... we are going to "paste" the cycle into the background photograph.

Paste into the scenery and position where you think it would look most realistic.

Now we are going to "paint away" the original cycle image to reveal the scenery. Press "Y' and access the Brush Menu. Make sure the "History Brush" tool is chosen. Pick a medium sized brush with a soft edge and start removing the original background. Especially with an object as complicated as a motorcycle, this is a delicate job and will no doubt require the use of several different brushes.