You only made 6 art print designs and already think your Etsy shop is failing, oh boy… I don’t mean to sound harsh here, your Etsy shop isn’t failing but you just need to hustle harder on it. The chances of succeeding with just 6 art print designs in such a saturated niche is just extremely slim. I wouldn’t even worry about social media right now, you need to continue pumping out new designs and work on the quality of your listing images and SEO. Do more research on what type of art people actually like, don’t copy other sellers’ designs of course but you can get some ideas on the style. Also please do set realistic expectations for this journey, I made hundreds of designs before getting any serious tractions in my shop and I still continue to release new designs every single week. Keep hustling and improving, and you will get there eventually!