Over the weekend, I found this awesome Black Canary sketch by J. Scott Campbell over at Comic Vine.
The image is supposedly part of a "jam sketch" where multiple artists contribute to the whole, each adding a different character. Campbell only posted this much to Instagram, so the entire cast of characters and artists is unknown, but you can definitely make out The Flash and Captain America under her (where they belong).
J. Scott Campbell has a very dynamic albeit gloriously cheesecake style. I've always wanted to see him work on Black Canary or Birds of Prey, even if he only provided the covers. I might have to track him down at a Con some day and commission my own sketch.