WIP portrait of loki

This is a detail of a painting I'm doing for my friend Tin (yes, a detail not the closeup, it's just a painting in the background of the actual painting, if you know what I mean). She had this idea of AU with Loki and Thor in different eras. The actual painting is taking me forever, so I thought I'll post at least this.
For some mystical reason I couldn't stop giggling while painting this, I dunno, I'm stupid like that, I find it funny.
Anyway, it was fun but quite hard. Also I'm not sure I've got the resemblance right. I'm accustomed to painting cute Loki, but this one has mean eyebrows lol. But I wanted the vibe of arrogance and superiority and had no idea how to achieve that, so mean eyebrows it is.

TUMBLR - [link]