This project is definitely suitable for a portfolio, and I like the examples you show of your process: very visually appealing. My suggestion would be to consider telling a story throughout each project, that go along with the visuals. So (in addition to your introduction at the top) you talk a little bit more about how you progressed with each image, rather than simply let the images stand on their own.
I feel a UX portfolio should be about one's thinking and in addition to showing deliverables, it would be helpful to show your abilities to create the story (of the project).
I hope that is helpful! Good luck!