Removing the arches and changing the posts to square would make a huge difference in the curb appeal. The existing landscaping along the porch is really boring and the example RL Relocation did would make a huge difference. I find double front doors very odd since you're unlikely to actually open both doors when guests arrive. I don't think it would do any favors for your curb appeal. Remove the storm door and maybe get a new front door to make it more welcoming. I think your brick looks pretty classic and it would be a shame to paint, and a maintenance headache over time. I would be more inclined to paint the trim something less stark than white (like gray). I also think your garage door looks pretty nice as it is today.

I would do everything: roof , windows and siding the gray of the middle stone in your last picture

Lots of potential here as it's sort of a blank slate. Looks like a couple of additions gave the house different roof lines. Regarding a porch, you may run into complications with marrying the two roof lines. Have you considered a pergola instead? You'll have to figure out how to handle covering up the basement window however but I'm sure it can be done. At some point, you probably want to change out the windows for a different look but not sure that is in your budget. Everything is very expensive right now. Also don't know the look/style you are going for. If you paint the brick, you have to have much taller landscaping on the right side for interest otherwise it will look like a big blank wall. If you do nothing else, completely filling the front between the house and the walkway with a well planned landscaping will make a huge difference. Nice before and after pics on this one Suggest you post the kitchen question under a different topic.

I‘m in Cali too. Not sure, but it looks like the LA metro area. The thing that immediately stood out for me is the landscape mix of rocks and brick. I would have chosen one or the other. I could see a pale yellow on the stucco (I think the current color is too close to the roof color; reminds me of the popular colors of the 90s). I could also see removing the wrought iron decorative post (not sure if that is orginal based in the design) and put in a railing along that side, with a design tilting toward the 1950s. I am not the biggest fan of security doors, but understand why some really like the functionality of it. If it were my house, I would remove the security door and put in a stained wooden door. Love the original mail slot. I have a 1950s house too that is in Los Angeles proper that has the white wood siding too (vertical vs horizontal slats), but the stucco parts are a dark green with a dark brown painted front door. We also have wrought iron, but in the house. It acts as a wall near our staircase. I doubt ours is original too as the design does not fit the year the house was built (1958-59).