[ItsMattyG]

oh hmm, the penguin/giraffe one when I first saw it I was like "that looks like an upside down penguin, where's the giraffe?" Whereas others I immediately saw what it was trying to be.

[dwighttk]

I probably saw it as a right side up penguin first.

(I just went and looked on my phone and they are all more effective when they are tiny squares instead of blown up on a big screen.)