Looks like Mat is trying to increase his destruction skill.
This started as a random doodle, but I kind of liked how it turned out and decided to fully colour it. I liked how the wizard robes in Skyrim looked on my character so I couldn't resist doing a picture of Mat wearing them. :D
![Mat Character Sheet 2016 [Non-Adult Version]](https://va.ib.metapix.net/thumbnails/medium/1780/1780817_Mat_combined_character_sheet_2016_clean__noncustom.jpg "Mat Character Sheet 2016 [Non-Adult Version]")