I'm certainly no expert, but it does indeed look like the photo is tilted a touch, but it could be the after work beer.
(Look at the very top of the photo at the roof panel joint to see what I mean) Also on my monitor there seems to be some compression/grain marks showing on the dark part of the seats. So maybe try rotating left a degree or so and use less sharpening and use USM
instead? Of course I could be wrong.
Give me a mile of road and I can take you a mile. Give me a mile of runway and I can show you the world.