>>6054278yah, this is the painting Akiman (Akira Yasuda) did.
>>6054184he posted it a long while back on his blog, and they reprinted the image for the anniversary art books that compiled the different Capcom artists' art. It's also used as part of the packaging for a limited ed release of 3rd Strike, with another gorgeous painting of Chun Li doing a spinning bird kick. He is basically the SF character designer since SF1-SF3 3rd Strike, after which he and 2 other influential senior CAPCOM artists left, right after Capcom sold the rights of Street Fighter to Capcom USA.
Anyways, Ikeno, the guy who did the art for SF3 3rd Strike, is his junior and understudy, and for SF4, they took that detail on the glove and it's become the new staple for Ryu (dont know for how long though)