Highest priority items are marked with ⭐

Homepage

• First impression: after landing on the homepage with no context about the product, it's very hard to grasp the idea of what the ODD Ball actually is. As your product is not something that most people are familiar with, some descriptive copy at the top of the page could help. Watching user recordings and how they interact with the page would be very insightful. ⭐
• Some social proof in the form of e.g. press mentions would be useful - let visitors know that they can trust you.
• https://oddballism.com/pages/product is where you're properly explaining the features and benefits of your product. The problem is that visitors can only reach this page through the navigation bar and the small link in the second section of the homepage. You're displaying different kinds of stuff on the homepage before people can actually understand what's so cool about the ODD Ball. And the /product page does it well. Thus, a more prominent call to action to move traffic to the /product page could help. ⭐
• The search feature in the navigation bar is redundant as there isn't much to search for.

• SEO:

  • There are 3 H1 tags on the homepage instead of one. You should change the extra two headings into H2.

  

  • Meta title and description are not optimized for getting high click-through rates from search results - the title should be more descriptive, and the description is too long.

  

• Pages are too wide, causing the horizontal scrollbar to appear, which is not a perfect experience (I've viewed your website on Chrome, Brave, and Firefox; 1366x768)

Product page

• As mentioned before, this page does a good job explaining what your product is and its benefits. A more prominent call to action to the product details page might be useful though. ⭐
• SEO - similar edits needed as on the homepage.

Product Category Page

• The goal of the product category page is to let users easily select the right product for their needs. Selling one product, you simply don't need it. Instead, you should have a product details page, where users would see just one product, with multiple variations and colors. ⭐

A good example for inspiration could be Casper - you're viewing one product but can select different sizes (colors or packs in your case) and frames (accessories in your case).