I would definitively try with white leather tennis shoes or heeled booties, or heeled ankle strapped sandals, or navy ballerinas with a detail such as a bow or a red button.
To be brutally honest, I'm not fond of these clogs with the pants, as their round tip doesn't match, in my mind, the pants' side slit finition. The hem's elegant draping with its tentalizing flash of skin demands either something more refined (think oriental sultana), something unabashingly androgynous (think Ellen degeneres), or fiercely rebellious (Madona's booties). But one thing is for sure, you can't be utilitarian (read: round toed) with this dazzling, unique and certainly alluring piece.
Also, I think you need to look some more for a navy top that matches the dark, almost black navy in the pants' print. The tops shown above unfortunately seem too light in comparison. It's a problem I also have with navy, it seems it's very hard to match. Even the piece that was supposed to go with it turned out to be wrong in shade and dye. You can, of course, go white on top, or, yet again, chose a completely other color. I agree with you that the fit is very good. And I agree with Angie that they call for tucking. Their flowey, sophisticated sway will be better showcased by showing the garment in its entirety.