Will you be repainting the siding or just the dark brown shutters and trim between the levels? I think the style of the house and windows work with the brown, just not the brown that is currently there. Here are probably way more suggestions than you need:

If you are only painting the dark brown trim between the levels and the shutters, look at the list of trim colors below for some ideas. If you are repainting the siding and trim and shutters, here's a few combos from those color match apps:

BM
siding:
Roxbury Caramel
Gingerbread Man
Farm Fresh

Trim:
Lighthouse Landing
Barbados Sand
Cream Fleece

Accent:
Suede Brown
Antique Pewter
CupcakeTaos Taupe
Leather Saddle Brown
Cabin Fever

SW
Siding:
Jute Brown
Coconut Husk
Steady Brown
Sturdy Brown
Tea Chest
Toasty

Trim:
Portico
Cork Wedge
Travertine
Macadamia
Bagel
Bultmore Buff
Irish Cream
Dromedary Camel

Accent:
Tiki hut
Gingery
Anonymous
Sierra Redwood
Smokey Topas
Homestead Brown
Renwick Olive
Rockwood Amber
Meadow Trail

Cool house -- I love yellow brick, and the house has nice proportions too.

Here are some color ideas. The mock-ups are amateurish, but I hope they help anyway. I haven't learned how to use my imaging software well yet.

Warm browns look good with a complimentary neutral trim based on the window color:

Greens are pretty with gold brick, slightly whiter trim color than previous picture:

And here's a deep gold, trim color based on darker section of the window trim. (Actually, I didn't get the porch area right):