I'm pretty happy but there are some minor things that bother me and I would have liked to change. Many people don't get the mechanic from the description, so I should have added a visual animation for it. Others struggle with shooting because I added the pivot point a bit behind the cannon. The me of the present would have used the initial clicking point.
I guess this goes to show that a week is a small time period to create and having random people playtest is very important.