Jill, that second picture took me AGES to fathom out!
I saw the most obvious animal straight away - I won't spoil the surprise for anyone by saying it's a frog!
But the second animal . . . . . . . has anyone else got it yet?
A clue - you have to turn your head 90 degrees to the right (i.e. put your right ear on your right shoulder!) to see it.