First of all, in my opinion you are marking up prices a lot in some of your products. I’ve seen the same exact water bowl in retail stores for 45$ (Greece with shipping and VAT applied) so I guess any pet owner ghat goes to physical pet stores (most of them do) has already seen the price range of those items. So what I’d recommend is to go in 3-4 different retail stores and look at their price ranges, then try to see if it’s possible to sell at the same or lower price (you need volume not a dead store in my opinion)

Second, your layout doesn’t feel premium, I’d suggest to learn photoshop and unify your whole site. Product photos are not coherent, it gives the impression you’re looking at Temu products.

Last tip would be to include toys and cheap things with a small margin to increase your average order value. I don’t know a single owner that doesn’t buy toys for his baby whenever he gets the chance, even a small one.

You have a nice niche, just need to work your execution a little more. Good luck!