Hi,
I am a full time academic and designer. I teach design principles, and have a very good understanding of colour and the ways in which it works in design.
For the price I quoted, i will write a report on your site sand the effectiveness of the existing colours, propose changes and design two alternative colour schemed for you. I do think that the existing colours in the link are problematic.
Colour is fundamentally important, and it is good to see you giving itserious consideration.