4-panel episode "Resignation Tears" of webcomic Horned Warrior Friends:

Panel 1 of 4: Queen Raptorcorn is addressing her subjects from a lecturn which says "Me me me me" Queen Raptorcorn says "I regret... *sniff* that in my reign... *sniff*..."

Panel 2 of 4: Queen Raptorcorn continues "...I didn't get to eat all of you"

Panel 3 of 4: Queen Raptorn has gone. Yellow Unicorn says "She was the WORST" Normal Alpacacorn says "Good riddance" Rhino says "Who's next then"

Panel 4 of 4: A giant red Unicorn T-Rex wearing the crown has stormed in, knocking over the lecturn, breathing fire into the sky, a skull and crossbones on their side. The crowd looks up and says quietly: "Oh wow"