I'm not going to spend the time to repeat exactly what Matthew & Sara said - as I agree with EVERYTHING said. As for keywords, you've said you've revamped them dozens of times. Here's to one more time: Nobody is searching for 50% off. And tags of "best selling", most popular, and popular downloads aren't going to get you anywhere.
Another example, the tags and title with this one aren't getting you traffic...
https://www.etsy.com/listing/176453367/hideaway?ref=shop_home_feat_3If you need help with tags and titles, there are teams for this specific help. Also, show your prints to friends and family and ask them to describe it. Use those descriptors in your tags and titles.
For your prints, there are no details about how it's printed. Is it printed on computer paper? Matte? Glossy? Is it matted? How will I receive it? How do you mail it? What if I receive it damaged?
There are many stones left unturned that would help your shop take off.