Shopify Theme updates and changes

Hi,

We have a website on Shopify using default theme. We want to make some changes to the site which are following:

- Create Image for banner sections.
- Reduce the height of the banner section
- Add a strip at top of te page which has our opening hours and contact number
- Add Whatsapp icon to the navigation area (do not want to use app for this)
- Improve overall look and feel of the site
- Add Delivery date and time fields on Checkout page - We already have this but doesn;t work properly. We do not want to use App for this.

Please note that it requires good design and creativity skills to be able to do this job.

I have a reference site to get some ideas but cannot use any images from their site. So you will have to create a your own version.

I can provide links to our site and the reference on request.

Thanks