The next shot show the top inside of the case. Again you have the option to install a second 14mm fan or just install 2x 120mm fans. Now installing a 240mm radiator for watercooling will be a bit harder seeing the little room I doubt if it possible to a push and pull config. But it will be fun to explore to see if it possible.
Cooler Master CM690 II Advanced Case Review,
The next shot show the rightside of the case, the room between the sidepanel cover and the case backplate itself is enough to route your cables so nothing shows up inside the case. Even the thick atx powercable of the powersupply is not going to be a problem.