I built this bike for my daughter Delilah. She's the same one that I built the trike for 4+ years ago. This bike (like the green one on the Vanilla site) was built with the goal of creating true, lasting transportation for a kid that get around by bike.
Because of the large wheels, and the particular geometry of the frame, the bike will be able to grow with the kid for around 5 years. Right now, it's set up in it's smallest configuration with the saddle bottomed out, 140mm cranks, a 50mm quill stem and swept back bars. As the owner grown, the cranks can get longer, the saddle height and setback greater, the stem longer and the bar can change to a flat bar, or a drop, or moustach bar.
I have dreams of refining this model and building a small batch of them in stock sizes a couple times a year for other kids in families that get around by bike.
Check out the rest of the photos on the Vanilla workshop Flickr page