Colin I share JW concerns, I can very occasionally get water through my intakes which are in the middle of the boat, double baffled and well sheltered by the helmsman, seats etc, so I think your ones are asking for trouble
I am also surprised by the size of them, it might be that the picture is misleading but to me they look small
As a rule of thumb an engine room needs 4.5 m≥ of air per HP per hour, this isnít all for combustion it is also for cooling. Not trying to worry you but it might be an idea to ask a few question now rather than wait for any problems to occur.
Ps Forgot to say nice looking boat