Funny, I don't remember seeing that ship when I took this shot:-) Nicely done, especially for a quickie. Extra credit points if you matched the colors by eye...as opposed to using the eye dropper tool. Don't worry, I do that too, but it's good practice to be able to make the colors without using the eye dropper tool. One thing I'll point out though, especially if you want to make concepts like this more convincing is to be sure to match the direction of light from the original background image. The light in the BG is coming from the right and the light on the ship is coming from the left. This makes the ship look cut out, and keeps it from sitting in the environment.