Proof that Oxford is, indeed, Hogwarts

So last night I went to a lovely black-tie dinner for graduate linguists at Christ Church. We did not eat in the hall, but rather in the neighboring McKenna Room. While I was in there, I saw a number of lovely portraits. But one portrait in particular proved to me that I do, indeed, go to Hogwarts. Here's some photographic evidence.

Here I am in the McKenna Room, with two portraits. The top portrait is Henry VIII. Let's zoom in on the bottom portrait:
Now is it just me, or is that not Professor Snape???????

*Sigh.* This place is awesome.