My 2 cents anyways. I think you should work on tweaking the hood. Too much "solid" light blue in reference to the original, and doesn't do the design justice. Other than that good work on the smaller details. I like the fact you recreated the dotted color effects.
I thought we had the decency to keep silly comments like that to ourselves.
I for one like the idea, but it could be better. I know it's screencaps and therefore not the best quality characters, but you seem to have made a rough extraction of the characters leaving some visible edges. And the clouds don't match up on the left front hood.
In most cases ends up in jagged edges and white artifacts in the corners. You might get by with it on bright backgrounds but more often than not, it's not the best idea.
Get a vector editing software that supports the eps/ai formats(example: http://inkscape.org/) then either copy the shapes, if supported by the editor or remove the white background and save as transparent png.