Revising with OCs

being someone who has to undergo masses of GCSE exams in the following next two months (fudge.), I naturally would panic about revision and such. One on the most annoying things I cannot put my head around is the ion tests in Chemistry. So I decided to find a way to remember all the elements and their corresponding colours (to certain chemicals or to a flame)... by creating OCs.
 

So... from left to right: Casper (Calcium), Lilith (Lithium), Nate (Sodium), Polly (Potassium) and Barry (Barium).

They're the pyrotechnics of their P.L.U.S. team - possibly of a military group. (I have a feeling I should change them to some aspiring pyrotechnics as they seem too young.) 

The colours from the flame test corresponds to different aspects of the character  - ie Lilith is a redhead and Barry has a apple green hoodie. I haven't developed further more than I've just shown so... yeah. first draft... 

It's possible not the most efficient way to revise but definitely the most fun. I can't guarantee I will fully remember all of them (apple green, dirty green, bright red, brick red... ARGH) but at least I would be looking forward to revising chemistry!