I've been neglectful - I have not been posting much about Walter. In fact, I have been informed that the lack of pictoral evidence of his existence is wildly inappropriate.
First, here's what he looks like when he amuses himself.
The question you're asking is: just how much has he grown? You may remember him back on day one - he practically fit in the palm of my hand. Now, he definitely will not.
He's become a big, beautiful boy, and he's still only about 1/3 his full growth.