Ford carrier is almost twice the size of your carrier, the distance between deck edge and catobar is bigger then on you'r carrier. It looks closer on the drawing of Ford, due to scaling of the picture.
The second drawing doesn't make the ships any more seaworthy just due to the change of the flight deck. It is the hull underneath that is the factor there. A flight deck can have massive overhang without affecting the seaworthy of a ship. One of the many reason for carriers have their flight deck shaped as it is, is to reduce weight of flight deck but at the same have an efficient as possible flight deck as possible. So if there is an area of the flight deck that are not going to be used for anything, they remove that area. Your flight deck is also to wide.
Notice the overhang
HMS Hermes is similar length as your carrier, and is an good example of the size limit you will be working with. You might be wining a little more deck space aft with a more modern hull design, but not by much.
