Wow, just taking off a few awnings really made a big difference. Painting the ones you've left your roof color is an excellent idea! Looking at the inspiration house, they have put the darker color on the body, and light on the trim and gable. I'd go for that. Since you have a kind of "drive down" garage, I'd paint that the house body color without any embellishment...almost treat it like part of the foundation. Then your eye would just naturally go to the front entry. In that inspiration picture, I wonder if they didn't use a third color on the trim along the roof. It looks darker than the house body color by a couple of shades. Since someone mentioned the railing ironwork, I understand it is possible for a DIYer to use a metal cutting sawblade to take out the "fancy bits", sand at the spot they were previously welded and then spraypaint. That would leave you with a simple rail until you might want to re-do the railing and porch cover.

You have completely changed the flow though...new fire feature just an accent rather than focal point?

What a great working color palette! Because there are a number of textures and variations already in the kitchen, simplicity in the backsplash is key. Otherwise, there may be too many elements competing for your attention when you walk into the space. Pursuing a monochromatic backsplash would look very nice, whether it's a flat (instead of gloss, to relate to the stone more) subway tile or a tile with just a very slight tone variation. Finding a grout that almost disappears into the tile will also be key. Going with a light gray (slightly cooler toned instead of warmer toned) looks like it will complement the stone on the island as well as the flooring and pull out the silver in the countertop, moreso than a beige or taupe will. It will also feel a little more modern than traditional. On pattern, the herringbone is introducing another new element into the space and may look too busy - a standard brick pattern will relate to the stacked stones and the floor pattern. It's important to look at your kitchen as a whole and decide what element you want to be the focal point. With too many focal points or "wow" features at every turn, a space can look chaotic and too busy. The island is so unique and the flooring is definitely an eye-catcher, so having a "softer" backsplash will help keep the focus on those points of interest.

Changes to an impressive, architect-designed, multi-million dollar house should be commensurate with the value. I'd leave exterior remodelling to the next owner and concentrate now on a few cosmetic changes. You may want to hire a color consultant for the paint choices. The shrubs will need pruning before the painters start. Then install a lavish amount of blooming annuals when you put it up for sale in two years. Please post an update when you are finished with new paint.