This was just posted on eBay if interested... also like to hear you thoughts.... more pics here

The YT junk yard dog falcon

Patina copper? weird idea. You see very few raw metallics in Star Wars, well except episode 1 but I try not to think about that one. even so copper is an odd choice for a ships hull. I think your large areas of patina change the scale look of the ship, smaller streaks would be better.