yup, it's the Trio in a Photobox.
No further questions, I guess...

Well, actually I wanted to draw the three of them facing down a bunch of Deatheaters, hence looking scared. But the facial expressions turned out to look completely ridiculous and artificial, and that was how I came up with the idea of putting them insedie of a photobox making faces.... I need a therapy....

The date on the pics is self-explaining, I guess.
Why Penzance? That's a town (or city? ...somewhere inbetween) in the south of England (Cornwell, if I remember correctly...), and it had a dental surgery practically right across the street from the public library when I spent a couple of days there last summer. That sight was enough to send me into hysterics (try to explain the hilarity of it to non HP-fan friends... not possible!). And so I decided then and there that Penzance is where Hermione lives until I am told differently.

So let's just say the boys spend a couple of days with the Grangers.
Oh, and the Jubille pool is a swimming pool down by the sea in Penzance, filled with seawater.

That's it!