Assuming Redbubble does a good job, metal prints are nothing short of great for this kind of stuff, especially in matte finish.
I want to buy a metal print of your Pikmin art, I'm just trying to find a week where I'll be able to receive it easily. I'll post a picture if someone is interested, even if I'm not sure a picture is really revealing.
I've been convinced by metal prints for this kind of "paintings" when I saw Aoji display in Japan Expo a couple years ago. I guess it would be hard/expensive for you to have a display in Japan Expo, but I think you could find possible customers there, btw...
Too bad I left Lille at the end of April and won't come back for several weeks, I would have liked to see your expo there.
I'll probably buy half a dozen smaller ones, too. I really like your art, I just have to settle on the size/material... hard choices... :/ Thanks for your work. The last one is great once again.
Edit: I'll say it (although it's not a request, seeing how the series is not well-known in the West and in bad shape now), I'd be curious to see what you would do with Sakura Taisen. Especially with the third game. More than curious, in fact... avid