Shopify website Changes

Hi, I want a few changes to our current Shopify website maximum 1-2 hour job.

Please check this loom video https://www.loom.com/share/eed5a789714a47a3a7a8c5df30cdaecd

Our website: https://shop.skinclubaustralia.com.au/

Reference: https://silkpillow.com.au/

Changes need to be add:
1. Shopping popup
2. Reviews
3. Checkout Security
4. Fast & Free Shipping Australia Wide ?
5. Button Color