I remember I've seen this picture quite long ago and I didn't knew the creator.And today I was browsing the dA shop and saw it...so I just want to say one thing....
You've really outdone yourself man =]
It's all pen tool and shapes. What i meant about the tigers was that the stockphotos which i used as reference while drawing the tiger vectors came from that site. Thought it was obvious, but it's never wrong to ask.. otherwise you'd never know would you?