So you say the only prints you have are from family, and they did not give you all five stars, man, that is rough.
You need a few more family or friend prints. Even if they are small. Get perfect reviews, so the reviews that show up in search as five stars.
You need to change your imagery. So your banner should show prints, not your computer.
Make sure your “completeness” check is 100%.
YOU DEFINITELY NEED TO OFFER MORE COLORS. If people are finding you, they are not ordering because they cannot select a color they like. (You only have 3 colors) So unless they want the model in one of those 3 colors, they are going to move on to another hub.
Set your delivery out an extra day, offer more colors, and be prepared to drive and get filament for a color they have selected, to do the order. (I can get overnight from Amazon here, so I can do that)
OR pick the most common colors and add to your stable: Black, Blue, Red, White, Green.
OR at least add an ASK color.
Keep your pricing low until you get orders. You need to buy some business.
Your location is very populated with printers, so you have to work it, to get up on the list by location, but if people search by your “postal code” (what we US call zip code) they should see you, but need to be able to order in a color they want.