Looking good so far, and I agree with Andy about the wing - almost certainly warped, always a difficult fix.
Oscar Wilde would probably have said "There's only one thing worse than lots of sanding, and that's more sanding" (With apologies to Monty Python!).
Re the photos, do you mean getting them into a required order? If so, once you've clicked the upload button in the manage attachments panel, the pics will appear in the box below. If not in the order required, then they can be 'dragged', with the mouse, to the required positions.