Really cool angle, and would look amazing, as you pointed out...with a bit more work on the wing condessation.
1stly it helps to use a picture for reference, so you know what your drawing...
Then i would say try and use a variety of shades of white, as yours is slightly monotonal. Also try to smoothen out your 'painting', because you can see the little circles from the brush tool.
If I was gonna do this though, i would just select the area for the condenstation, and fill it white with a slight gradient, then but a gaussian blur on it. Then simply just erase the messy bits so it fits.
LOL sorry just to chuck all this at you, i know its kinda jumbled. Hope it helps though

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