Homepage Redesign Within Existing Template

My current homepage at www.chocolatewood.com.au needs a visual and functional refresh, but the template itself must stay exactly as it is. I want the same framework—menus, section structure and underlying theme—yet a far more attractive front door for visitors.
Website is running on Shopify.

Here is what I need done:
• Replace dated visuals with bright-and-colorful hero images and secondary photos that feel true to the Chocolate Wood brand.
• Design and upload fresh promotional banners that pop, drive clicks and fit perfectly inside the template’s existing banner slots.
• Re-arrange or restyle on-screen elements so the layout looks cleaner and navigation feels more intuitive—no new theme files, just smart use of CSS, spacing, typography and colour.
• Tidy copy spacing and alignment so product snippets, headings and calls-to-action are easy to skim.
• Ensure the revised homepage renders flawlessly on desktop, tablet and mobile without breaking any existing pages.

Deliverables
1. A fully updated live homepage using the current theme files only.
2. Optimised images and banners (web-ready, compressed, named logically).
3. Any custom CSS or snippets documented so I can maintain them later.

Success is a homepage that feels fresh, lively and engaging, loads quickly and guides shoppers smoothly to our collections—all without replacing the template we already use.