Have been doing quite a few studies and sketches lately, including participating in Paul Canavan's Twitch Stream "Study Buddies" events!
Paul chooses a few references, sets a time limit, then we try to flex our skills! Highly recommend these, as it's great to see other artist's inspiration and interpretation on the same piece within a time limit.
Also, since joining the Warhammer 40k team at Cubicle7, I've been trying new render techniques to live up to some of my favorite artists, Igor Sid definitely being one of them. I expect I'll be doing a lot more studies of his work in the coming months!