Your windows are blown........
If there is a view worth looking at you would need at least 2 shots. One exposed for inside the room and one exposed for the outside. Then mask and layer in whatever program. That will give you a view. Use a tripod so that the camera doesnt move and that each layer is exactly the same
Your horizon is crooked too
Bounce flash may have helped as well.
Aperture should be f8 to f11......
It doesnt have a great "party" look to me.........its very formal......maybe needed some party hats on the table or that sort of thing......and for someone to straighten the table cloth
Other options would be shoot from the end of the table, diagonally across the table to the window.........walk around with the camera to your eye and find " the " spot.
I love the colours and the detail in the stone walls as well as the red reflections on the floor!
cheers
Jan