I'm partly Decora myself, mainly into Fairy Kei/ Decora.
One tip to know is don't just throw om everything bright and colourful you have on!
it got to be, like Toro said, an 'organised chaos' XD
i recomend checking out LawlFactory's youtube channel:
and a very popular Decora Fairy Kei Girl, MIO Baby Love. i look up to her XDD This is her blog:
Hope this helps! and i love RTBU ^^