Japanese crossword «Caution! Angry dog!»

It could also have been called happy dog, sleeping dog, or banana.

Or a frog or a crocodile

It took me a while to see it, but when I did I found I disagree with the previous comments. It's clearly what it is meant to be. Its posture might indicate a happy greeting, except its ears are back. And jumping and sleeping don't go well together. ;) I can see where Marina got her version of things, but hopefully looking at the thumbnail cleared that up.