This house reminds me a bit of those little hotels along A1A in Florida with the reception desk in the middle. If you are in that area, you might consider something a bit more "beach-y." If you are elsewhere, the house needs more than just paint to make it look home-y, but warm tones would help. See Houzz Photos under "beach house exterior" if you are in a beach area, or consider at least warmer tones in the paint, such as warm taupes, sages, tans, etc to make it look more residential. Trim could go darker or lighter, depending upon paint tone.