I took these two shots while at the National Aquarium in Baltimore. Near their beautiful tank full of sharks and rays, there are these tall cylindrical glass containers full of water, lit from above, that bubble up every now and then, like the ubiquitous treasure chest in a fish tank.

Each of these is a lengthy exposure (1/15 to 1/2 a second), since the water (and location) made everything eerily dark. But the bubbles themselves glistened through the glass and made interesting distorted shapes if you looked at them a certain way.

It's one of those things which proves to me (yet again) that the most random things can become your subject matter; most of finding something interesting to photograph comes from looking and being ready (both of which require the practice of careful attention and openness--neither of which I have mastered at all).