Excuse my duh-ness but i'm having difficulty trying to follow whats going on here. Are these two photos an exact replica of your house and pool ? If not a hasty sketch with dimensions could help a lot. By kitchen wall do you mean the wall behind the bar ? And where is the pool wall ? Are you considering the covered area as being "inside" ? Sorry for all those questions lol Sometimes when you have a design problem you need to turn it inside out or on it's head. If you can't beat it maybe embrace it by making a feature of it : i.e. contrast by having the lightest colored pool surround and a great blue or tile inside and under the overhang, something that will echo the water color ? If you have a great covered area as in photo you'll most likely be spending a lot of time there and it could be soothing to be able to sometimes retire into a darker inside. In my book, 10M isn't small and also contrasting two floor colors doesn't necessarily make a space seem smaller and confined and may in fact even open it up. Could it be that you've thought yourself into a box here ? Sometimes one needs to give it all a good shake up and see how it resettles.

Try wood and glass. Consider hanging the mirror vertically and about 5" from the sideboard top. You could also move the table under the light fixture, change it out for a chandelier, and put the sideboard and mirror on the clock wall where the mirror could double the chandy which should hang 36" or less above the table top.

Temple and Webster have some great ones. So do eBay and Gumtree.

I have not heard anything bad about having doors that open from any direction of the house and as you have not confirmed which country you live in I can not even predict where the worst of the winds would come from. I live in NZ and my front door faces North West. Where I live that is the worst / strongest winds that we have so the only negative for me is on a story day I might be blown down the steps or the rain might soak me as I try to unlock the door. I have simply eliminated what I can by adding a glass roof above my front deck. My back door faces south east and again the weather was and is the only problem so I enclosed this area with a porch which allows me to have the door open most days, almost all year round. NZ's bad weather comes from the south and the sun is in the North. If you are also in a similar location / southern hemisphere then your plan shows me your house is perfectly positioned for the best of the sun. I think you have absolutely nothing to worry about. Don't listen to negative comments make the most of what you have and if you need to make small adjustments for wind, rain or too much sun. ENJOY YOURSELF AND YOUR NEW HOME.