Happy Hallowe'en CHEM style

Had this sitting in my hard drive for a while, figured I should finish this before Hallowe'en.

Some CHEMsters out trick-or-treating~
Helium's gone as a "ghost"--he glows because he just ran some electricity through himself (don't ask how).
Hydrogen, due to a dare by the Alkalis, went as Harry Potter. He went, thinking it would be nothing, but little did he know Iodine (green hair kid) was told by the Alkalis to take as many pictures as he could. Iodine, dressed as a film canister, complied joyously and followed Hydro all night.
Francium's a devil, and Radon's an angel. (for obvious reasons).
Carbon went as a flower but doesn't seem to be enjoying the night.
Far in the back Lithium, dressed in some gothic dress I guess, drags Potassium, dressed as a monkey, who seems a little distressed.

Ehhh kinda rushed it since I'm running out of time right now.
It can be used as a desktop.

CHEM and characters are mine.
HP ain't.