The background: works well for the scene
Albus: Well choosen robe. It fits Albus very good. The beard looks also perfect. It's my favorite part of Albus.
Alastor: He looks very young in this scene. His hair is beautiful drawn as always. I was surprised about your choice of colours this time. They are Remus' colours in my eyes, but fit Alastor as well very good. I like the pose and his very emotional expression. The only thing I could never think fitting with Alastor is his shirt showing through his robes. I would believe him not to be the kind of person how would wear it like this or Poppy would show him her disfavor about it. But that's what seeing drawing about scenes and charakter from my stories; it's great to see how others see them.
Severus: I love his pose and worried expression.
Hellhound: As I already told you, I imagine him much bigger but besides this I like him a lot. You drew his fur colour perfectly. I love how his hair stands up on his back and his red eyes. I like the overall shape of the hellhound and his pose. God I love how you drew him!
over all: As always I love your choice of colous. They look so vivid and warm.

--
Photo [link] Art [link]

Thanks so much for your detailed feedback! About the way Alastor dress, I think these gryffindor like color fit him good too. It's interesting to know you would see them for Remus too. And about the shirt coming out, well it may look a bit too "young" for him. But I think he doesnot really care for his appearance, Poppy or not. I see him really well undoing his shirt as soon as Poppy turns her back
I like drawing the hair, I really enjoy doing this, and the fur too. I intended to make the hellhound bigger but it came like this and I was happy with the shape so I didn't want to re-draw it, as I feared the next version wouldn't be so good, as it is often the case when I re-draw something.