Sorry didn't see the pictures. Again assuming lighter tv, no articulation, use toggles like the ones in the link, you can use washers as spacers on the bolt to set your depth of the bracket as you have an uneven wall.
Caveat - use this advice at your own risk as I have not seen in person.
http://www.lowes.com/pd/TOGGLER-10-P...-Bolts/3183831