This Loki (Thor 2011) fan art contains
green beret, special forces, elite soldier, rifleman, and battle dress.
There might also be
fatigues, navy seal, and seal.
This is a tribute to the great Marvel character Loki, played by Tom Hiddleston in the 2011 movie "Thor".
The song used is "Jar of Hearts". The original song is from Christina Perri, but this one is a cover from Maddi Jane.