So, so interesting! The majority of this is smoothly stylized, but Snape's and Harry's faces is what drew me first, and keeps tugging me back to study the intense, almost painful realism of their facial expression.
Harry is almost red-nosed, like he'd like to cry, but can't. Yet as choked up as he is, he also seems to be looking at his mother's name with a teenage disbelief, as though he still can't deal with his wonderful parents leaving him, to never know them personally.
Having been part of their deaths personally is clearly hard on Snape. Along with his concern for Harry, is the miserable tight squeeze of his own guilt, that something which began in teenage anger and self-protection ended by getting both Potters killed. Having both the one he detested and the one he loved forever buried together makes it forever impossible for him to resolve.
His hand on Harry's shoulder, his protective stance, show his deep care for Harry here, even while Harry's attention is focused on his thoughts of his mum.
This is really well-done, thoughtful art, and I just looked and looked at it. It captures so many feelings and events. You're magic!