Would you mind some criticism on your design?
I would either raise the boxes/drawers off the floor or get rid of them. There needs to be a "toe-kick" space. Having to worry about stubbing one's toes on a drawer-front is not something you want the parents to be concerned about at 3:30AM. Plus, retrieving a kid out of a crib usually requires that you belly-up to the front rail. You need some space for the feet.
Trust me on this one.
Good idea on the under-crib storage, though.