Hydraulic schematic

[rlarzzon83]

Hi!
I am trying to draw a schematic for a hydralic system.

The system will have a pump that provides:
1100rpm
200bar
24cm3 deplacement

I will also try to pick 2 cylinders (double-acting?) that can lift a hatch (45kN needed for each cylinder).
I also need to stop the hatch from going down in case of internal leackage from the directional valve.
the hatch should also have a lock that should be oporated with the hydraulic cylinder.

The lock only applies activated when the door is closed. (Closed door = locked door)Picture below is what i have come up with so far in my drawing. What am i missing? what should i adjust?Thanks in advance for every inputs!