So true.Sounds obvious but clean it and get rid of personal effects so pictures are clear and show the RV's personality. This was one of my biggest let downs when I was looking for our coach. People would not clean or tidy things up and would have all their personal effects out and expect big bucks for their units. I passed up many coached because my feeling was if you could not clean it to sell it then you probably didn't take care of it either.
I see so many RV photos that are dark, out of focus, tilted, show blinds or shades crooked, toilet paper hanging down, dishes in the sink. I find it helpful for photos labeled describing whatever the feature being shown. Even if it shows peeling leather, suggest it is only $300 to buy a new piece or you will kick in $600 to get it reupholstered. Better yet, get 'er done yourself. Throw covers or loosely fitting covers of any sort are a dead giveaway to crappy furniture.
Clean up your storage bays so they don't look like a grease monkey or hoarder lives there.