Professional landscaping would have the greatest impact.

for a richer look, SW Polished Mahagany for the siding and shutters. a fresh light blue for the front door.

A color that unites the reddish brown roof and orange/brown brick. Kinda like this as suggested.

I did this sketch just to show concept, but you can go to a paint company website, uploard your photo and "paint" your house online using their Visualizer in their paint colors.

I think some professional landscaping help would give you the biggest bang for the buck. I like the way the windows look with the brown shutters and I would not remove them.

Another option to go with painting

or refresh with muted green that works good with brown.

You wouldn’t smear the brick?

" You wouldn’t smear the brick? "

Absolutely not. You mention "minimally extensive" and then ask about a schmear? Paint the siding a color from the bricks and landscape.

You could clad the porch columns in wood. Painted or stained.

Shmear or limewash might make the brick a funny color like pale apricot maybe even peachy. I think it lightens the natural color of the brick. I know red brick looks pinkish with it.

I like the brown shutters, and the brown gable paint posted above. I absolutely would not smear the brick. The brick is beautiful as it is. I would also keep the shutters, they add a lot of interest to your house.

I would not cover the bricks. Take a photo of them and get a rich brown paint to match for the gable and shutters. The mahogany suggestions have too much red in them. Chocolate brown might be better.

Then paint your front door a happy color you love.