Behold the CacoSquig

When I started painting my Squig Hoppers in my Warhammer Army I saw this guy and couldn't resist going all in on the CacoDemon look for him. I'm now thinking of doing my next unit of these guys all in this scheme now.

Help 🙏

I restarted the story twice for the trophy "The circle is complete" I obtained all the runes twice, and the achievement did not appear... please help me 🙏

Is this artwork official, or fan made?