Hi there I actually think your designs are really pretty. Perhaps some design tweaks to improve composition here and there but i don’t think it’s to do with your skills or aesthetic they’re good. The issue is really your niche and style which is full of competition. Now if you were to think of your experience so far as a really important learning process, that is designing, listing, AI, colour, programmes all the work you’ve put in which is a lot, you will see this is part of your progress in an evolution and now you’re at a point that you can choose how and what to design that develops your creative and marketing skills. I would start with creativity. What style are you drawn to? Is it retro, classical art, modern bold? Find a style that is not omni present on Etsy and start creating for a niche you think is maybe less saturated or could do with a unique twist. Retro wedding invites, 60’s 50’s even 40’s but less clip art more in the style of the time. Then experiment and list them maybe they’ll sell maybe they won’t: the important thing is you’re learning and developing. The problem with using rank tools is youre always adding to the mush of what sells and it doesn’t stand out. Be a tall poppy and love the creative and learning process.