“In repose” was all about being balanced, relaxed and stress-free. This topic is on the other end of the continuum. And it is as wide as your imagination: xtreme location, xtreme sports, xtreme wide-angle, xtreme emotion, xtreme post-processing, xtreme contrast, xtreme temperature, … yes, perhaps even an xtreme cat, framed :-)
Push the envelope, explore the boundaries... above all, have lots of fun and create pictures that simply scream “xtreme!”