I have a ranch style house with cream aluminum siding. With white aluminum trim with dark green shutters and med green roof. What color do you recommend for front door?

When figuring the sq/ft do I measure the walls of which I will be painting or do I use the actual sq/ft of the house floor?

I live in an area of the Midwest where the subsoil is very dense clay and there is pretty heavy seasonal rainfall. I want to paint/seal my poured concrete basement to help keep out the heavy damp (never a leak) and I started using the Loxon to paint the inside

I painted my bedroom in eggshell, tan color, and after it was dry I noticed it is all uneven. Shiny in some spots and dull in others. Will this go away with a second coat? What did I do wrong?