It's a cool site - did you handpick all the items? they're brilliant!
i really like how the info is laid out - very easy to read and well written - for example the telescopes - i like how the three types are explained and then the various characteristics with the icons for each telescope.
i'd like to have a sticky nav bar across the top. i'd also like more categories - i really like the drone and telescope category - maybe a drop down with other popular categories in the nav bar. you could also have a total category listing page - and you could put this category listing in the footer also.
i don't like all the social share icons down the right or on the product images but that's a personal thing.
the home page has too much on it - it's ridiculously long - quite overwhelmingly for me. maybe you could have popular products and categorise everything else. if people want to view all products on a page, give them that option but maybe don't land them on it.
with regard to the design itself - i like it's simplicity - but to me it looks a small bit dated.
- I think you could make use of coloured backgrounds/white text to section some of the pages better
- The product blocks on the homepage could be improved - i'd remove the padding so the button and image stretch to the edges . i'd move the name below the image and use a different font for the product name - and i'd remove the link to the amazon page on the header text - and a colour more definite (maybe white) than the light blue background.
- i'd lose all the rounded edges on the blocks and buttons - keep it sharper and edgier - i think it'd fit the site better.
overall, it's a cool site - i've saved it for gift ideas for the future! with a bit of tweaking, i think it could be great!
best of luck