If I was going to recreate the plaid, I'd go with sewing. Paint can be difficult to control [Depending on the line thickness], and doesn't have the same look or feel as something sewn on.
Next con: Nekocon
What I'm working on:
(New) Evie - Disney's Descendants
(New) Ladybug - Miraculous Ladybug
(New) Raven Queen (SDCC 2015 Exclusive) - Ever After High
(New) Chat Noir - Miraculous Ladybug
(New) Darling Charming - Ever After High
(New) Rin Hoshizora (Fruits Idolized) - Love Live!