Hit close to 5k in sales via organic search recently and got around 2k visitors and 800 clicks via google images using the exact strategy that I explained in my last blog post by optimizing just 200 images.
This is relatively a new store with a domain age of less than a year. I have been doing SEO on this for around 4 months. I will doing a series of post on SEO optimization that you can do in 2019 and try to keep it simple. These things are working for me and you can model