Some great suggestions, but not based on a realistic budget which you have not said anything about. I'm in the no shutters and no balconies camp. Both are out of scale and the balusters on the balcony look more like interior country style ones than classic exterior ones. Can't really imagine what your husband is suggesting. Be sure you don't end up with a jumped up look where nothing relates to any classic style.

No responses yet but today I bought a tester of SW Mindful Gray. It's not dry yet but hoping this may work with my bricks. Maybe others have used this color with brick? It seems close enough to the mortar color.

sage greens work well, the shutters could go, or be replaced a bit larger. the front door needs to be a pop since its set back, maybe a blue tone. soft yellow trim is nice with this combo

i have a bunch of pics here, so use your imagination and try to vision what I think would look good on your place. Love you metal roof idea. I think you should update the home (the 60's were good, but it's time for a facelift) to more of a mid century modern vibe. there are a few ways. First, Paint. yes, paint the brick (With Romabio of course. it's meant for masonry and has almost zero upkeep. look it up. Not the lime wash one, the masonry paint. you can have it tinted to any color so, imagine if the siding was done in a dark charcoal, and the brick below painted a soft white or gray? Or you could reverse the colors another poster on here painted their brick and was looking for another color option for the siding. I'd do your window trim in a dark color. here's a before/after from another poster on here. looks good eh? painted brick, white siding, dark window trim, AND she added the wood slat on the porch area. Wood is necessary! so the other option, composite wood siding (Hardie) on the 2nd story, just like this. paint the brick oh, and more modern garage doors. that's a must I love this one. similar style home to yours. you could paint the brick white, do the composite wood siding, trim out the windows, new garage door, front door. (this is my fave) next comment i'll post more split level pics