Hi, just read your request. I noticed that the picture you provided is not a render, therefore I must cut it...however, I don't really think it's a really good stock >_>, so I'm here too offer you a couple choices I quickly selected:
http://i617.photobucket.com/albums/t...rs/Miku1HQ.png
http://i617.photobucket.com/albums/t...tervocaloi.png
http://i617.photobucket.com/albums/t...mikurender.png
http://i617.photobucket.com/albums/t...rs/ichize1.png
http://i617.photobucket.com/albums/t...ers/miku-1.png.
Please see if any of these fit your taste, it would definitely make my life easier if you find one you like.
However, if you insist on a render with both luka (Thats the name of pink hair girl) and miku in it, I would suggest this pic instead.
http://i617.photobucket.com/albums/t...nders/mika.jpg
Now that's a picture I would gladly render myself, however, like I indicated the sig would then take a longer time.
I'm a bit confused about the box/pop up sig. I can't really do both, because that's like asking me to draw a square and a circle at the same time (they are completely different things, look at my example posts) >_> So I'll prob just go with a box sig.
Also a comment on the style, I'm actually not really into doing smudge right now (look at my recent works, none of them involves smudging)...so I'm wondering it's alright if I just do w/e comes to my mind instead of using smudges.
Edit: Nevermind, for some reason, prob because I'm sleep deprived, I thought the picture wasn't a render at first. I apologize, will make the sig with that render then, still feel free to look through the stuff I provided to see if there's anything you like even better though! Will work on it tomorrow.