I'd recommend getting a better pic of the ship. That one's too dark. The thing is, that dark a pic lacks the colour to brighten it and make it look nice. Rather get a better pic of the ship and then go take a screenie of that same background without the ship and paste in the brighter pic and then use the quickmask method to mask out the bright background. You can always make the ship darker if it doesn't look right from the start.
PS: the one you sent me for your current SIG is a nice one..