What do you see?

The first puppy born from this litter is this cute little boy.  He has a very interesting mark on the back of his neck that originally looked kind of like the Batman symbol.  As he's grown it has grown and changed with him.  We are located in Colorado so I like to think it looks like a Colorado C, with a sort of mountain peak on top.  Other people have said it looks like the silhouette of a child's head - more specifically, Charlie Brown.  Or looking at it the other way, it looks kind of like when a child puts their hands together to make a heart.  There are lots of different opinions - what do you see?  I wonder what it will look like when he is grown up.