Promission Acclomplishkept (Mission Accomplished, Promise Kept)

I need to figure out how to do better "publicity" shots with watermarks. Kind of hard to provide pictures, since that's exactly what I'm trying to sell...
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Anyway, without further ado... Damage!:

Witness as this:



Turns into this:



And then, for some reason, into this:



I successfully made a damage layer, which combined with masking and judicious use of layers, made it a cakewalk to apply to the J-20. Unfortunately, I don't think my old airplanes have PSD's up to that standard, but fortunately the damage texture will be easy to apply to the layer-less PNG's I already have done. Also, remind me to do a step-by-step sometime since I'm pretty proud of the Photoshop tricks I'm pulling off...
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Anyway, I have to go help my girlfriend write a paper about the Battle of Khalkhin Gol, the most important Battle of WWII you've never heard of.

Goodnight!