Some with flash; some without. Some with teacher; some without. Some straight; some goofball. The whole set can be accessed via this Flickr Set:
2014 05 Rio Phyz Class Portraits
UPDATE: As per usual, Flickr sent the original album into the æther somehow. I re-uploaded the whole thing. I can't imagine relying on Flickr as a backup of any sort. Photo links often degrade faster than a fine pastry, and albums once loaded can easily disappear for no apparent reason.