| Palladian harmonics would suggest a 16' height, so you're hardly too high. But it's also important that this single room is not out of harmony with the rest of your home. See some of the interiors at Palladio masterpiece at link. Once one gets into such designs it makes sense to have the input of a trained architect. |
Here is a link that might be useful: Palladio Villa Malcontenta
| I think it should look fine with the heights you've chosen. If I'm picturing it correctly, the height of the perimeter/trays will be 6" higher than the kitchen celing. You could always lower the overall heights another 6" but I wouldn't bring the lowest point in the GR ceiling lower than the height of the kitchen ceiling. Below is an old thread that may help visually......... |
Here is a link that might be useful: ceilings