Sorry, I've only just seen this! The moment I saw the previous MME bits, I knew I had a custom idea! Finding clothing is more difficult though. The Woodsy Faerie Dress might work, but it is low and looks awful on the Peophin... It's like they just forgot to do an upper layer for the species! Unfortunately, that's true for a lot of the dresses for the Peophin. I've been playing with DTI and found a couple of interesting options though:
Dyeworks Green: Elaborate Ninja Dress
Gothic Dress Shirt and Flowy Scaled Skirt
King of the Forest Robes
Dark Battle Armour and and Flowy Scaled Skirt
Hmm... options, options...