If you mirror flip the background pic, it would be perfect. (lighting is in the wrong direction for the plane. )

Great looking edit.

One other tip, the cockpit glass. 

Quick & easy composite cockpit glass:

select the entire area with the window (frame & all) with the magic wand/pen tool, and copy it. 

Now erase all the blue 'glass' area where you would be able to see through to the other side.

Now paste your copy and place it right where it was as a new layer and adjust the opacity of it until you can see it, but see through it.

You now have realistic appearing cockpit glass.

I would not want to be that close to a CB in a 152.