Gorgeous home! Here's the Sherwin Williams color scheme I see for you:
Siding- 61576 Favorite Tan
Trim- 6154 Nacre
Window panes- 6158 Sawdust
Porch floors- 6206 Oyster Bay
Front door- 7682 Bee's Wax or 6361 Autumnal
This will be a pretty big change from a simple cool scheme to a creamy warm tone-on-tone look with subtle porch floors and a welcome burst of color for the front door. Make sure you brush out big samples of the colors (at least 2ft x 2ft) to make sure you're happy with the choices. This combination will show off all of the lovely details while creating an inviting feel. Hope you love it!