I've actually cosplayed some of my own UTAUs and even made my sis cosplay Yume Shinya once. That was the only time she cosplayed Yume, tho. In the end, my best friend cosplayed Yume the most.
So let's start with this one:
1. http://gintaku.deviantart.com/art/Kagura-and-Yume-Shinya-303153044
My best friend as Yume Shinya.
2. http://gintaku.deviantart.com/art/Namine-Ritsu-Cosplay-318832072
Me as Ritsu Namine. Although I forgot the neck thingy OTL This was a cosplay shoot with KyraEnvyChan.
3. http://gintaku.deviantart.com/art/UTAU-Cosplay-Mizuno-and-Mino-318841537
Here are Kyra and I as Mizuno and Mino Shinya. Because, why not? xD
4. http://gintaku.deviantart.com/art/UTAU-cosplay-Shinya-Mino-332000642
Me as Mino Shinya xD
5. http://esrag999.deviantart.com/art/Mgc-yume-shinya-334742039
Another UTAU user who I first met as a SeeU cosplayer asked me if she could borrow my sister's Yume outfit ;u;
6. http://gintaku.deviantart.com/art/UTAU-Cosplay-Mino-x-Nitomi-364149329
And this is a fun one. My boyfriend as Mino Shinya and I as Nitomi Mishka. TvT
And I'm still planning on cosplaying Miko Ooka once~ I already have the wig and shoes. I only need the outfit tho TTATT
I just LOVE cosplaying UTAUs. There are a lot of UTAUs I want to cosplay, even Yami Ryone. But I don't know how to get the right wig OTL
So yeah~ TuT