For blanka i could see him in a pose like this
Chun you guys need to come up with a different poses then what we seen her time and time again in the kit world and statues.
We've seen the one leg up, the hands out front, static pose. Not sure in her direction you wanted to go, but most chun players might see her in this pose. Its like her getting ready to pop out her ultra 1. ill check the comics as well to see.
As for sagat any pose for him would prob work since hes a beast.