I would suggest the darker color for the main body of the house, and then a lighter color on the forward section with the entry in it. Then, a third color on the round "tower". Darker or lighter, just different. Then pick out the details in the stucco individually, such as the trim around the arches in the white to tie it in with the windows, and the actual interior face of the arch in the blue. I'd also find some pretty tile to put on the steps face, and under the sill of the arch sections. Tile and color accents.

Light gray with green undertone for the body would look great with your orange toned roof- with a crisp white for the trim.

The Buckland Blue looks really close. I think the Pale Oak may be more off white than your inspiration pic, but I think it will look great. I'm sorry you haven't gotten many responses. I read your post last night, but was on my laptop that has crappy color rendering, and I didn't want to pipe in with color advice when I knew the images I was seeing were off.

Get a modern-looking garage door with some windows. It's a big part of the visual, so it matters.