Earth Polution

One of my few photo manipulations, one of the very few serious ones. And holy poop...this was a serious one, ~100 layers, took ~8 hours. However, I'm quite happy with the outcome, share your thoughts

Most of the resources:
Animal/Bird renders - png.bychuhe.com/
Giraffe - www.pngimage.com/wp-content/up…
Background sky - www.cgpinoy.org/t12879-fly-me-…
Lake - www.lovethesepics.com/wp-conte…
Factory - www.cgtextures.com/texview.php…
Smoke - www.cgtextures.com/texview.php…
Cracks - www.trendleaks.com/wp-content/…
Oil splashes - orig01.deviantart.net/0098/f/2…
Tree - www.cgtextures.com/texview.php…