Less is more. When you end up creating something try to strip away all the bloat and only use the essentials (nav bars/menus) and then iterate on that with fonts that you like or pleasing colorschemes. My best go to piece of advice is to just go here https://color.adobe.com/create/color-wheel and mess around with the various color harmonies until you get something you like. Then you take that font + color scheme back into Claude Design and tell it to apply it to your stripped down design.