panjetty: I think the color a house should blend into the neighborhood homes. The exterior paint on a home should not stick out like a sore thumb. If a person lives in a San Francisco neighborhood where the houses are called painted ladies, you might paint your home purple and that purple would blend in for that particular neighborhood (photo below). Some neighborhoods (gated communities) dictate to the home owner what color house is acceptable, so the gated community neighborhoods always remain beautiful & cohesive. I do not disagree with you, but I always look around the neighborhood before I have my houses painted and I appreciate my neighbors who also look around the neighborhood and choose colors that blend in and do not "make a statement".

A houzz contributor, not too long ago, had made a wine rack out of 4'x4' wooden pallets, that are used in the US to move a load of goods with a fork-lift truck. Perhaps they have them in your country. He cut them in half so they were only two feet deep and stacked them up to high counter height. The wood would be a nice contrast with your concrete, might add a little warmth to the space. cascio.offsite@gmail.com

I would break it up into various rooms, approximately 10 feet by 15 feet each, though a longer one with a long narrow (2 feet?) water feature against the wall and seating and plants in the center part would work. Plants on the wall, making it vertically green. A path leading from room to room should jog, so you cannot see straight through. Change the theme of rooms, large fancy pottery, an outdoor dining area, sunbathing area if possible.

If you keep the red roof, a creamy yellow base would look good: ro a tan: You could co in the other direction with a olive brown: Or a dark gray like this brick home: What are the colors of nearby homes?