Good photos help with both click rate, conversion rate and overall ranking of your ads. A few things to keep in mind when shooting your products:
Product description is crucial in closing a sale. The main purpose is to convince shoppers that your products are worth spending their money on.
The main things you need to do are:
Start the Perfect Listing course to learn in detail.
In general, mid- to high-priced items do better in Etsy ads. This is because Etsy ads are charged the same way for all products. Usually the cost per click is similar for any products. That means for lower priced products, the Etsy ads will contribute a higher percentage of costs, making them less profitable.
I did a 2-month experiment on my Growing Your Craft Etsy shop, and because of the nature of digital products, Etsy ads are not profitable for my Etsy shop.
For new shops, it can be hard to rank with just Etsy SEO. Etsy Ads can be a good investment to build up some initial sales and positive reviews quickly. It can also give you insights of what product photos work best (listings with high click rate) and how to craft better listings (listings with high conversion rate).