Bright eyeshadow can be tricky, so if you're a newbie turning to brights on your eyes, I recommend using one intense color at a time and using it as an accent (at the outer end of your lid, along the lashline, or in the crease) blended in with a predominately neutral eye (shades of gray or brown make brights way easier to pull off).
Here are my must-have eye makeup additions for spring. Inglot, Nars, and Illamasqua are cruelty-free; I've received conflicting information about Sephora + Pantone Universe since (to my knowledge) Sephora is selling in China.
at Inglot, $14
The brightest periwinkle, begging to be paired with white eyeliner--but only for the bold.