neon or selenium

images off of google.

research: for second project:
note: the first project will be uploaded(my apologies)
well onward>>> i have a project to choose between the two chemicals i have chosen and make a semi-realistic illustration:
NEON: is a awesome chemical to work with...it is what Las Vegas is covered in...it emits light and can be created as a lazer, or even a cooling system...
SELENIUM: is more for health...it is said to help out with cancer, shrink tumors, and gastoritis it can only be dangerous if there is an overconsumtion of this chemical....though it is practically in every food we eat...
BUT this is an illustration what should i do??? NEON OR SELENIUM???