The first thing I see when an idea comes up for a handbag is a detail. How a handle is going to look or how the sides should fold in each other etc.. After that I shape the bag around that first idea. I can assure you, this can be quite a challenge! I then look for inspiration in various places: a magazine, a painting, nature or even a cookbook! Fortunately sometimes I can just draw a model directly based on an idea. Then there is a flow and I just allow myself to go with the flow.