Hmm, have you considered a leaf-like shawl type thing or capelet? I don't think the line of leaves looks right because Leafeon only has a few leaves placed sparingly around it's body. You could also maybe add some bracelet type things to represent the leaf things on the legs.
Is there a certain type of style you'd like to go for?
Tentative Debuts for 2013
Kululu/Kururu gijinka (Sgt. Frog)[85%]
Male!Angel Anarchy Panty (Panty and Stocking with Garterbelt)
Laxus Dreyar (Fairy Tail)
Kagamine Len (Vocaloid - Ah! It's a Wonderful Cats Life)
Rarity (Original Design gijinka)
Kaoru Hitachiin (Halloween episode)
-Maybes depending on time/money/plans
Braeburn (Original Design gijinka)