User blog comment:Maxpower325cp/Custom items Ep.1(Hiper-Doom Drone)/@comment-24148835-20130321225817

...it is pretty easy you only take like less than 1 minute, you did it on Paint.Net, then paste the Doom Drone suit photo, then go to adjustements, click on "Invert Colors", and done. Proof of me doing it:



However, sorry if I was rude with you, it seems you are a starter, however, good luck next time and you can do it better soon my friend, just practice, practice and practice!