Create a professional looking website with multiple pages

I need a new website created for my business. I already have the domain (plantbasedliving.co.uk) However, the website is down and I need this sorted as I would like to keep the same domain name.

I am a Personal Trainer, Vegan Nutrition Coach, Sports Massage Therapist and I hold Outdoor Bootcamps.
I would like multiple pages on my website explaining all my services.

I would like it to be very easy for my clients to make payments through the website and purchase different services.

I would like a photo/video gallery and testimonials page too.

I would like the home page to look clean, simple and modern with transitioning pictures.