I'll post a few more. ^^
Should I tell what the pictures are referencing?update
The pictures are not showing? Are there other person having this issue?
Uh... if they don't show up, it's not just a reference you'll need but a description. X D
But ok, I'll add some descriptions.
Touhou and Megaten reference.
Kirby and the Yellow and Shadow Devil.
The origin of Umbreon yellow marks.
Pikachu wearing a certain skull.