Naomi
Hello. I think your site navigates pretty well. And overall, the look of your site makes your work very nicely. Though I'm not sure you need to include two categories for your illustrations. I don?t know, not entirely sold on the idea of a category called "book concept". I would just simplify things and have a single illustration category.
I think you have some nice work on your site, I would continue to build upon your style and develop it further. One thing I noticed is a redundancy in your pieces. especially in your book illustrations. They all pretty much share the same construction (low horizon line with your characters about the same size and with the same expressions). I would add more variety and consider different compositions as you continue to develop your portfolio. Pretend you are part director part cameraman, move your imaginary lens around and see if you can come up with more interesting shots for your scenes.
Thanks for sharing!
Donald