Ultimately, you have to go with what you like. Personally, I like the all brick look you've mocked up. It's classic and durable. I didn't even notice the almond windows and when I did look at them, they looked very nice. Speaking for myself, I don't generally care for the white siding but it sound like you do! You should go with it if that's what you're looking for.

I would post this in design dilemmas as well. When I have a hard time making a decision and there are many choices, I only choose between two at a time. Start with your siding first, A against B, A against C, C against D, etc. After I made a final siding choice, if I couldn't find a trim color that works with it, I'd eliminate that siding color and I'd start the siding process again. It's hard for us to suggest colors without seeing your choices.

Nice house and yard. Consider choosing a dark bold brown for the fascia/soffit (and, perhaps, around your bold red door) but leave all the window trim white. A lighter brown for the siding you're adding would work well. https://www.pellabranch.com/blog/global-blogs/black-window-frames/ If the additional work to be done is changing out the windows, replace the large ?fixed? window with a pair that open and consider choosing black frames. You could then consider choosing a dark bold brown for window trim as well.

Gray would be the last color I would pick to go along with tan brick. Unless it’s a very deep charcoal gray, almost black. Plus, to quote another poster I just read, ”gray is yesterday.” PS I wish my grass looked that good.