Hello. My name is Ian Rose, and I have been a WordPress developer for over ten years. I would love to help you convert the design of one site into a new theme for yours. I've done similar work for clients a number of times before, and it's something I'm confident I can do for you.
Although I've been doing this for a long time, I am new to Freelancer, and so I'm extra motivated to do the work fast and right for you and earn a good review to build my reputation here. I'm giving you a lower bid than I usually would for building a theme, because I'm new here.
Thank you and good luck in your search.
Sincerely,
Ian Rose