Optimize the SEO and Overall Efficiency of my Etsy shop

I need an Etsy Expert to contribute the following:
• Optimizing titles
• Optimizing tags
• Rewriting listings descriptions
• Posting listing pin in Pinterest
• Adding t-shirt colors image
• Adding t-shirt color in variations
• Adding X-Small size to relevant listings
• Changing size variations on relevant listings
• Adding print colors image
• Researching most-searched keywords