I like everything about this - dark door/dark ceiling/ greenery! Chic dark graphite grey (gray) front doors against crisp white - full links and details:The Paper Mulberry: Exterior Paint Shades - Part 2
Make your own lace wallpaper effect, brilliant! You could make a canvas if you didn't want a complete wall covered, lovely. There are lots available on Etsy type in 'patterned paint roller' this example and others.
Exterior Color Inspiration: Chalky shades of grey paint - Farrow and Ball Lamp room gray, Manor House Grey, and French Grey Dark from the Little Greene Paint Company - full links and details: The Paper Mulberry: Exterior Paint Shades - Part 2