Hi Gina,
You've made a decent start with your tags and titles, but you definitely have some room for improvement. I'll take a single example from your shop:
The title is "Pet Memories, pet wood print, wood wall art, pet wood photos, pet photos, rainbow bridge, memories for pets on wood, wood memory ideas pet"
I'll get back to your title in a moment, but first let's look at your tags. These are "Pet Supplies", "Urns & Memorials", "Pet Portraits", "vintage portraits", "pet portraits", "gifts and mementos", "pet memories", "pet art", "rainbow bridge", "pet loss", "the loss of a pet", "gifts", "animal pictures", "pet pictures", "pictures for dog", "pictures for cats"
Now the first three tags there are freebies based on the listing category. It's important to know that you get those freebies, because it means you don't have to repeat them in your own tags - you can get rid of your extra "pet portraits" tag. Next, "gifts" is a fairly useless tag. Generally speaking, single-word tags are inefficient, because you can put those words into phrases and be relevant for the entire phrase as well as any single word in it. You also have a lot of repetition in the words you chose, and you're missing out on some potentially great keywords. You've listed in the "urns and memorials" category, but you haven't used the keyword "memorial" anywhere! I'd add "pet memorial", "pet photo memorial", or maybe more specifically "dog photo memorial", etc. You also want to watch out for those kinds of phrases you reach for when you start to run out of ideas, like your "pictures for cat/dog" tags. Think about all the different ways a customer might really search for something like what you're selling. Personally, if I wanted an item like what you have here, I'd probably search using terms like "photo pet memorial", "pet loss gift", and "photo memorial". If you ask 20 friends and family members what they'd search for, you might get a whole lot of different answers, but a bunch of them will overlap, and those are your critical keywords that should go in both your tags and your titles. The other phrases will likely be what we call "long tail keywords" (referring to the long tail of a statistical distribution). Those should go in your tags. Not as many people will search for them, but there will also be fewer results in search when people do use those phrases, so you get a good chance of being seen.
Now, back to your title. This title is STUFFED - you've got a lot of wood in there, a lot of pets, and not a lot of clear, simple description of the item. What is it? That should be the first thing you answer in the title. So start with something like "Pet photo memorial plaque, your pet photo printed on wood, pet loss gift, personalized pet memento". You don't need to use the entire title space (I know some people in the forum recommend this, but it's not actually backed by data - it's totally just "i know a guy who knows a guy who heard..."). What you do need is to include a clear description and a few of your strongest keyword phrases, in a human-readable format.
