Hello there @aleph_1 my first observation right off the back was the sticky header color selection. I think it should be edited because it could give people some trouble seeing it since it’s white and that could affect user experience early on.
Another suggestion would be to add a video or 2 to the gallery especially as you expand your products range as your store grows. It makes your site and products much more attractive.
Lastly, it would be a good idea to add a few FAQs on the homepage.