Room designs for a tween?!?

Okay, well i painted my room a BRIIIGHTTT green (AND I MEAN BRIGHT!) and teal, and EVERY thing in my room is currently green or teal.. i want to put more color in, but idk how! Since i recently painted NO chance of the parental authorities letting me redo it.. Help!!

It would try to get lighter colors in there. If you incorporate white into your room it could look really nice without being overwhelming. (:

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