Many thanks to Snatch Magazine who has tweeted their link and photo!
A portrait of Keanu Reeves appears in Issue No. 23 of Snatch Magazine. The photo is great and worth seeing. The caption that accompanies it not so much. You can view the photo half way down the page.
Thanks to @Faunesque who has tweeted a link to the photo on his Tumblr page. He is a French illustrator but it is not clear from Snatch Magazine if this is his work.
Update: I have asked @Faunesque if the work was his and he has replied that it is. He also included a link to his website. You can check out some of his other work here.