Preceden's my work and if their design was based on mine, I don't mind at all. I tend to base my initial designs on sites that look aesthetically pleasing to me and then adjust it over time to be my own. The dark blue header, for example, was inspired by http://www.braintreepaymentsolutions.com/. I'm sure they're doing something similar.
Thank you for the kind wishes! We looked all over the place for inspiration for our site. Though the resemblence here is just a coincidence, clearly we like your style.
Site looks great though--wish you guys the best.