Michael, you're items are super cute! It is hard starting out and trying to get traction. Here are a couple of things I would suggest.
1. You might want to add a banner or logo to your shop so it gives the perception to buyers you are professional business/a selling entity.
2. I would fill out all of the shop information like about, appearance, shop policies...I don't see anything about you in your shop. Buyers want to get to know the artist, as well as, your policies.
3. I would retake all your photos as they all have different shades of lighting, different backgrounds and some are even cut off so you can't see all the products. I took an online course with Amy Eaton (https://amytakespictures.com/) and she is an amazing product photographer. She has totally changed how my images look in my shop (https://www.etsy.com/shop/HardElements). They are brighter and more stylized so the buyers can really see what they are purchasing...and you don't need a fancy camera...I use my cell phone for all my pictures but I edit them in LightRoom and Amy teaches you how to do all that. If that's not for you, just ensure you have a neutral background and the lighting is even for every main photo so collectively the products look cohesive together.
4. You might want to reword your titles a little because those are your search words for Etsy and your products. So maybe change to Mosaic Wall Art Seaglass Artwork Home Decor Pottery Tiles Gift for Her....something to that effect. It's always good to go to best seller pages of similar items and see what they have for titles to give you better ideas. Then, the words you use in the title should be at least in the first and second sentence of your product description. Somehow you need to kind of match up the content and title words because that good portion of how to be found...besides the tags etc. If you Google how to improve Etsy search, there is tons of info on that.
5. I'm not sure why your shipping cost is says $33.25 but I would fix that. I don't think many would pay that when others are doing free shipping. Not sure it's on all of your products but it's on this one: https://www.etsy.com/listing/790778382/mosaic-heart-mosaic-picture-mosaic-art?ref=shop_home_active_5.
6. Your categories on your left nav might be defined a little different. Maybe something like Celestial, Hearts, Home & Living..in the future you could have Flowers for example, it just depends on what you are creating. Try to put them in an collective, general category. I believe those are Etsy search words too.
7. This is just what I do and makes things look cleaner, I round up my price so if they are $39.90, I would change it to $40, if it's $46.55, I would make it $47. You could round down too either way.
I really hope all this helped! I know how hard it is, I'm really going through the same thing too and I'm consistently trying to find the magic for search and visibility. I wish you all the luck.
