No paint brick - that would be putting an inferior finish over a quality item. Its a nice variegated brick, not the heavy orange type that some people complain about. An argument might be made for applying a masonry stain to tone down a color... not that it needs it... but to put an opaque high maintenance plastic coating (eg acyrlic) isnt a good idea for the long term. I wholeheartedly agree w/above suggestions to remove the fake tudor and rethink those spaces under the eaves and around the windows- even just simple paint in a well-chosen brown that bridges the brick and roof colors would be a big improvement. Sometimes less is more, and I would argue that a handsome house in natural brick or stone and muted nature-colors is often the most beautiful house on the block. Then, you could put your $ and effort into some really lovely landscaping & perhaps pillars but I wouldnt get carried away with reinventing the architecutral elements - its very nice & balanced as is. Is that the view from the side? Looks like the street is off to the left?

I think something close to the Siding A color here might be nice. Sorry, couldn't get the photo any larger. I would remove the shutters from the lower windows. They're much too wide for them.

I'm usually not one to criticize here on Houzz so let me get this over with now...your house is both a color and architectural disaster. I'm not a fan of the current color...it is not a very pleasant color and is dated, as well. As it is the primary color, I'd start with changing it, then selecting a color for the brick. I'm wondering if you might be OK with the brick in its current state if the other siding is a different color. I am with your husband when it comes to whitewashing brick...it has its place - usually on much older structures - but I don't see it working well with your house. Would the same paint color on the brick and garage door work? The white garage door claims too much attention and shouldn't (it is nearly the home's focal point)...it is just another garage door and nothing special to look at. The white windows are doing a bit of the same thing...calling attention to themselves even though the bay window is a totally different style than the upper-floor windows. You have endless new subdivisions being constructed in Southern California...pay a visit to some of those to check out the current trends in color.

Dark gray or medium gray for the stucco above the brick - yes. Paint garage door to match the stucco color you ultimately choose. Paint your front door an accent color. Choose your accent color after you have painted the stucco and garage door. Your green front door might even work as is depending upon the stucco color you select. I like how these colors work with the brick on the insp pic below. Shutters - no. Remove them. You don't need them. Here is a brief article why they won't ever work on those windows https://www.lifeofanarchitect.com/residential-architecture-101-shutters/ Landscaping would really help with your curb appeal. It makes a huge difference on how your home is presented to the world. Here are some landscaping insp pics below to get your started: ^Wide planting beds and wide walkway leading to your home (not right up against your home).