Dining Room Window Mock-up

Which grid pattern looks better?  We constructed the dining room pop-out windows from cardboard and used masking tape to simulate the grid patterns under consideration.

4x3 (window pane) with no grids in transom:

 

4x3 with grids in transom:

Or, one less vertical grid...

3x3 with no grids in transom:

3x3 with grids in transom: