It might help if you provide a photo of yourself.
He's outfit is not that difficult as you might think. Just envision a turtleneck top with a tunic like bottom when you are making it. I heard silk comes out shiny in photos so you might want to avoid that fabric at all costs. I would use gabardine which is a mix of cotton and twili fabric. Its durable and it might come in the lime color your looking for. (If not there is always dying fabric). The pants are just regular hipi (or what I would call Hipi) pants that are stuffed into his shoe to give that puffy look at the ankle area.
This is something like what you have to make except you just have to add a sash, sleeves and a collar to it.
This does look pretty simple but it has a lot of layers that you might have to work with in order to get the proper look down. The goggles could be modified steampunk styled goggles and the sword could easily be made with this a cardboard tutorial that seems to be floating around here on Cosplay.com by a guy named Featherweight (I think).
Yu Protagonist-Persona 4
: Nothing really to comment about here since the cross-stitching is all that you will need to do.
Personally I'd go with either Yu Protagonist (if you want simple) or with Citan =]