Thanks all for the kind words.
Marco, I have taken a closer look but I think the orange stars are perhaps helping to give the impression that the nebula to the right is orange. Looking at it here there are quite a few stars around the nebulae and this looks like the nebula is orange. Quite disconcerting really, but at high res the nebula is a pinky red colour. Albeit very faint. That C shaped bit in the middle right does look faintly orange though, but again the orange stars are the culprits. Good pick Marco. I had to take a bit of a look to know for sure.