[Sloth]

That photo looks like crap... but while I would be hesitant to say it shows wing damage, it definitely shows a more substantive 'trail' behind the left wing than the right... whatever that trail is -- heat, turbulence, steam, etc.

[Sloth]

Did a quick 'histogram equalization' to bring out more detail, both in the positive and negative image. If this is IR, it certainly appears to show a good deal more heat concentrated on the underside of the left wing, compared to the right.