water laying in the bilge is different from seepage. you will always have water laying because your pump won't clear all of it. if your pump is cycling during a day, you have water coming in where is should not. as noted, check all your thruhulls. also check the livewell feed and drains to make sure it's not coming from there. do you have a bow thruster? check that too. you have a few holes under water on the engine mounts also. gw does seal them up well, but if there was any work done you might want to take a look at them too. if you do a lot of wash downs during the day, check the seals around the deck plates and your washdown pump lines to make sure there are no breaks. same with the fresh water; do you have to fill it constantly? could be a leak. also, make sure the head shower is draining into the sump and not the bilge (assuming it is used). take a look at the trim tab cylinder tops also.
hope you find the source, ron.