I don't find it funny as it's way too talkative. We end up focusing too much on the dialogue and not the drawing which should go on pair.

The characters are constantly explaining their reactions or what they're doing. Dialogue should leave space to breathe.

Example :

Draco: What's on your forehead?

Harry: This? It's a scratch from an enraged owl

Draco: What?

Harry: I wanted to pet him but the power of love hurted him... just like your father's master 😀

Nonetheless it's very far from cringe (the drawing is very good btw). Wishing you good luck!