Website updates on shopify

I have a number of small updates I would like to make to my shopify website ( www.julietherrera.com) the requirements are:

1- Adding pictures to the gallery
2- Add on the main menu a section called ´custom order´and create new page with some data capture points (name, e-mail etc)
3- Add a banner on the home page for free delivery
4- Add 8 new products to the shop
5- Update the current pictures on the shop to all be the same size
6- Reduce spacing in between the text of ´Brand Essence´on the footer menu
7- Update sizing chart and add a section into footer menu for sizing chart and how to measure
8- Move brand logo position from the top left to top center position
9- Add 3 sub menus within brand story
10- Categorise shop products (trousers, skirts, leggings etc)
11- Configure an abandoned cart e-mail follow up sequence
12- Increase font sizes on brand story

-