Fashion Designer's Portfolio Website Development

I am a qualified fashion designer and would like to build a professional website to showcase my work, skills and designs, while also helping potential customers discover and contact me.
The website should have a modern, elegant and visually focused design suitable for a fashion designer.
Main requirements:
Home page introducing my brand and design style
About Me / Designer Profile
Portfolio/gallery for showcasing fashion designs and completed work
Individual collections or categories
Services section
Client enquiry/contact form
WhatsApp/contact integration
Instagram/social media integration
Mobile-friendly responsive design
Basic SEO and Google-friendly structure
Fast loading and optimized images
Simple way to add/update portfolio items later

The primary goal is to create a strong online portfolio that I can share with prospective clients and also use to generate new customer enquiries.
I can provide photographs of my designs, profile information and other content required for the website.

Please mention the technology you recommend, estimated development time and cost, and share examples of similar portfolio/business websites you have developed.