My best piece of work

I was going to introduce my project in Adolescents Science & Technology Innovation Contest, but I do not have the photo on my computer, unfortunately. This is another work of mine. I think doodle is a kind of beautiful street art. As an abecedarian, the first doodle artist I know is Astek. I really like his style so I chose Astek as my English name and designed my own one. I think creating is not only inventing but also changing or improving on the original basis.