I'd say there is not much wrong with your shapes, they all look pleasing to me. I like the sycamore bowl the most out of the three.
Unless my eyes are deceiving me, I can see some tool marks on the first two bowls. On the first one, on the inside, right under the rim, and on the second one you seem to have some chattering marks on the outside, and I think there are also some on the inside. If you can get rid of them, then I'd say: good work.