....
Be aware that because
ALL the hexagons have been opened : -
1) - The whole panel will be substantially weakened as it is now a thin lacework of pliable plastic.
2) - The painted body will become visible through the upper rows of openings.
In my opinion it would be better if the upper rows were left closed as it would then offer both rigidity and look less aesthetically unconsidered.
This is what you would be exposing behind a grill : -
