just put a plotted plant right beside the front door inside your house [wall side], any plant will do, medium/large size.
if possible do a partition [no priority in this], actually put a half cupboard and have plant on top of the cupboard work well. 
[attachmentid=3920428] [attachmentid=3920429]

what we are doing is just redirecting the chi to your sofa area, current setting, chi just come and go out, no incentive to move to your sofa area, path of lease resistance. the plant will redirect the chi, while the cupboard/partition redirect the people. 

keep the space where you label "living", its a good ming tang for chi to rest.
the small living at top of staircase as well. 

no issue with your toilet and living room.
house plan is actually very nice. i think the designer already FungShui it. most high end developer already engage Master for their project ...

just south east ... how to advise. can only tell you good wealth, good heath. You enjoy both but its 50%/50%
house should not go very wrong, suitable of all kind, family or single.

put in your house plan, hand drawn also can.

This year do not renovate your house, any part, you sitting on tiger [cool term to impress people]. don't even strike nail on wall, if possible.

apart for your master room is smack on the sick sector, other are fine.

So, are you getting sick often ?

if yes, move your bed exactly reverse to the TV wall, park on the cabinet. leave the cabinet, you don't want to attach to the toilet wall [unless you want new girlfriend/boyfriend] or you can used the centre void wall, you need to used a thick curtain to cover the window.

your front door lead directly to the staircase, same stuff put some plant there. plan look like there is a cabinet on the "living", just move that cabinet to you create a partition between the staircase and front door, some plant on top should be fine.

kitchen is fine.