Nice result texh,
I have seen beans which look a whole heap worse that yours and still tasted great. My instinct is that things may have happened a little quickly, but who knows?
Andy also has a direct fire roaster on offer CoffeeSnobs - BeanBay - Other Stuff - Hand Roaster and Green Beans - FREE FREIGHT
As always, the answer is in the cup and I hope you enjoy yours. Good fun this roasting gig!