The lack of ears, nose shape and shading on the bridge of the nose on the sheep (in the second image) makes it look like a poodle. This is a sheep nose- [link] Also, what is up with the random little, I dunno, 'shake lines' around the thorns? They just look so off and it would look just fine without them.
I'm pretty sure this is the image we used [link] (although, I can't be sure being that this was done years ago). Also, directly after giving a tattoo with grey wash, it tends to look darker for a couple weeks until it's healed completely. There was more added to this piece that incorporated the "shakey lines", but I never got a picture of it. *shrugs*