don't know if it's supposed to work, but that house has so much "weight"-depth, dimension, mass, presence, something like that-that I think a front door that matches the other trim would be excellent. With the mass or whatever I'm trying to say of all that rich wood siding, you need something deep & powerful; different colors might look fussy & insignificant. It's a beautiful house!

Start with the roof (which looks like it needs to be done). After you've got that installed, you'll know what you are working with. Architectural? Color? If your budget allows, possibly do a metal roof (or at least over the porch); that will drive the follow-on decisions. Then, BEFORE you do anything else, remove the overgrown shrubs in front of the porch to open it up. It looks like you have siding. I'm not a proponent of trying to paint that, and not sure that you want to reside your house... so if you are going to work with the current siding, I'm partial to a dusty blue with some crisp white trim/gutters/garage/porch -- and you can go for a more dramatic hue of blue for the door.

I'll suggest complementing nature rather than trying to blend in. Shingles same as the siding -- change in texture, not color. I don't see traditional-transitional here, rather an attempt to craftsmanize a house that lacks any resemblance to craftsman. I noticed you have not started an ideabook, so no way of knowing your style. Is your builder/designer/architect unable to do color renderings like I showed above?

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.