I actually had an interesting thought about the two mystery Bamboo sharks.
The Spotted one - is likely the Indian Bamboo (Chiloscyllium indicum)
The Banded one is likely a juvie, like Matt suggested. But one species no one has said it could be yet is the Burma Bamboo (Chiloscyllium burmensis).
Considering this species so far is only been Identified by a Single adult male specimen. And given that this specimen was found in the same general area, and that this specimen is apparently a juvenile or young sub-adult (which is presently unknown for the Burma Bamboo). It's at least a real possibility.
This could mean that we finally have photos for all 7 known species of Bamboos (Chiloscyllium)