Nice work and love the colors.
Question for you -- do you use fusible fleece instead of batting or interfacing? I found this better because you fuse it onto your fabric then it makes quilting easier. Plus, it gives more support to the bag but yours looks nice and solid.
Another tip is to use light or med weight fusible interfacing on the lining for extra support. My customers have been very pleased and most of my orders are by word-of-mouth.
This is in no way a critique because your bag looks great. I know my first bag didn't look that good. Just want to share my mistakes so you don't have to learn them yourself.
Have fun !!