Not bad for early days Theo
Looks like the seeing may certainly have hindered here but could also be the processing, that scope is by all reports a corker. Mike Berthon-Jones has a 12.5" CDK and his images from reasonably light poluted western suburbs of Sydney are mighty fine with very tight stars. While I suspected it due to amazing images from Philip Kellers scopes, Mikes images are enough to suggest that the CDK is a better scope than an RC.
Keep at it, I look froward to seeing what comes from this moster scope.
Mike