How do I make my Shopify store look more premium?

Premium feel is mostly fundamentals done well, not flashy effects. The biggest levers: consistent, high-quality product photography on clean backgrounds; generous whitespace; a tight type system (one or two fonts, deliberate sizes); and a restrained color palette. Cheap-looking stores usually have cramped layouts, too many fonts and colors, and inconsistent imagery.

After that, polish the details — smooth hover states, a refined cart drawer, thoughtful empty states, and fast load (slow stores feel cheap regardless of design). Photography and spacing give you 80% of the upgrade before any custom code.