![Very Happy :D](./images/smilies/icon_e_biggrin.gif)
I’m kinda new to the fandom, so I probably won’t guess the references correctly, but I’ll give it my best shot.
The other snake is the basilisk, maybe?
The fireflies remind me of Golden Snitches XD
Nothing else except the book in the corner reminds me of Tom Riddle’s diary... XD Probably not that, though.
Not finished with the 7th book, so if any of the references I tried to guess were from the Deathly Hallows, I most likely got it wrong.