Simple responsive portfolio theme suggestions

Hi all,

I’ve been using WordPress on my site for a while and I’d like to re build it. I’m currently looking for a simple clear responsive theme to showcase my portfolio. I’m looking for something quite minimal, a bit like what I have already. I’m a photographer and here’s the link

http://www.christianpetersen.com

I’ve done my own searches and have used Colorlib.com’s theme’s before elsewhere and liked them. I wondered if anyone had any recommendations or personal experience with other themes they’ve liked using?

Best wishes,

Christian