I did this image in a week of work.
I've used the awesome CGCookie Flexrig for the characters, the Scenecity add-on from Arnaud Couturier for the background city and the Grass Essentials add-on from Andrew Price for the grass.
Then I've used these models from Blendswap (thanks a lot guys!):
"A rose" from jgilhutton
"MeanTrikes-WhitewashNo1" from rianvermeulen
"Skateboard" from elmaterdor
"Tree again!" from mherpin
All rendered in Cycles, 2500 samples. The render took me almost an hour using an Intel I7 with 12 threads.
I hope you like it. Feedback are welcome of course.
- Status: Final