Is the 80-square-meter Quanyang house feng shui good?

These conditions you mentioned can't judge whether the house is feng shui.

Whether feng shui is good or not depends first on whether the surrounding environment is favorable.

The second is to look at the internal layout and furniture layout.

Can only be judged by combining them. Good light is not the basic basis for judging good feng shui. A house with bad light is not necessarily bad feng shui. A house with good light and feng shui is not necessarily good.