[IG/@glitch_prod] Sentinel concept art (catch-up post)

Sent by @glitch_prod on Instagram on 2023-08-28 19:01:22 (catching up).

Original description:

THEY GO RAWR XD ITS CANON!! ITS IN @liamvickersanimation CONCEPT ART!

(Post is semi-automated; a script is run to build the post and then verified and posted manually.)