at last, i'm back in this topic with good news.
the oars work has been complete. i have to change the angle of the oars to give a better look to the galley.
I fill all the holes in the oars bank and repeat the drilling operation

.
the prow is glue to the deck. the rear is nearly done.
the final result (for the moment) :

all the boat is sanded with a grinder's light disk to level all parts.

enjoy
Eric