Simon...it looks a nice bike, but if you don't mind me saying..you could help your sale by
1. Remove the pump/cages/bar ends..they all detract from the 'lines' of the frame and build.
2. Raise the seat-post a bit and angle the seat properly.
3. Please please please stop torturing the rear mech.....its making my eyes water...outer ring to inner cog tut tut...shows lack of mechanical sympathy.
Clean and polish and some close up photos with a neutral background should do it.
Carl