Very nice Paul....easy to navigate and has some meaningful content.
I've dabbled in website work myself and am always curious to see how others have set theirs up.
I see some that have only 1 page

and others that have too many

and yet others that are hard to navigate

and yet others that do not give out the information you would like to (or expect) to see
Yours is about perfect.
As to using different colours...sure you could experiment but it wasn't something that stood out as a problem for me.
Keep up the good work!