Please give me some advice from a Feng Shui master. Does this type of house need an entrance hall or a screen? How to do it?

Don’t make a porch. Change the sliding door glass from the living room to the balcony to dark and opaque glass, and try to open the door on the left as often as possible. Just don't open the door before rushing. It is better to change the TV cabinet to the left side of the Baihu side (near Room 4). Now there is a taller ceramic vase (not red) placed in this corner of the TV cabinet. There is a Chinese knot hanging on the wall to the left of the restaurant door. Overall, your house has a good layout, congratulations.