This is absolutely gorgeous (and true to form, I ignored the notes so I didn't know there was animation, leading me to think "Hunh...I wonder if we're just supposed to imagine what's going on with Harry missing from his b'day party" *g*) Luckily...I kept looking.
What a lovely image. I love Harry's neck and shoulder and the rapt expression on his face...and Snape - with his wonderfully shadowed skin and perfectly greasy hair - has such need and want and love in his face. I hope you post that image separately at some point, because I'm hoping to use it as my desktop image at some point. Well done!