That is an awesome commission. No one ever really comments about the Archangel insignia on Garrus' shoulder. Actually a bit of a shape he dropped it in ME3, given that he's name dropped as Archangel in the Citadel DLC by those poor Cat 6 goons about to get torn to ribbons.
And haha, that's a nice picture. Shep, Tali, and Garrus standing over a Thresher Maw kill... I guess they didn't heed Zaeed's advice in regards to threshers