They aren't exactly special to begin with, but I can't help but I may have subconsciously copied these from somewhere specific.

http://imgur.com/a/UbuQD

Wearing a fold-over jacket with a brooch, a long red scarf, and a coat around the neck instead of on the arms have all been used, but nothing to major that you'll get in trouble over it.

Well, yes actually. The first one is the i'ma deck you in the schnoze look, the second is then powering up to Super Carrots!, and the last one is of them chillazing.

Now, joking aside, they are RL poses. The first one is an stern/angry stance, with their fist clenched. Their eyebrows are furrowed and their arms are out to the side in the second, which makes them look intimidating. The last one is them when relaxed (it really doesn't have much better of a description than that, but I could try.). Those are things you will see in anime, movies, video games, and in real life despite me being unable to list a absolute example. If you did these without reference (or, with memory), look into what you recently watched to find exact poses, but they are easily findable.