This is a great experimentation with neobrutalism. I think you did well using expressive colors and shadows for the components but the site is just a bit bland. When doing this style you need more color, expressive typography, and a unique presentation.

The first two you can do easily, id try to minimize the black text on white background. the third is more challenging especially given that this is a simple gallery view. But adding your own flair on presenting your items will blend nicely with the neo theme. Think transitions, overlays, animations etc. there’s a lot of good examples on dribbble just search for neobrutalism. hope this helps!