Alpha is a challenge in Second Life.
This actually isn't so much a Second Life problem as an alpha channel problem; when placed close together in a three dimensional environment like Second Life, there are problems determining which of the transparent images are in front and which are behind, leading to inversions of images. The most common way to handle it is to move things father apart; the second most common way is to change your angle of view, changing the distance between things.
Honour pointed me toward a fantastic art piece by Lily Jun (a shared account for three artists) that makes use of alpha in a unique way - and which you could even say takes advantage of some of these alpha occlusion errors as you move past images. Layered levels of varying transparency, as you move different things show up and vanish as you move past the images. Experiencing the way the layers move against each other is wonderful, and can't be captured in still images, so do take some time to stop by. Some of the images are hidden behind others, so also take to the air and head up a bit to see the city floating in the sky, moving gently.
( More pictures here. )
Credits:
Location: Shadow Play
Light Settings: Phototools, Moon Light 01
Water Settings: Mirror Water
Photographed by Deoridhe Quandry
Post processing: Cropping
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