I wouldn't go so far as redoing the roof - meaning new rafters and support structure, nor sliding the bay window over. Might as well build a second floor if going to that much trouble. First I would pick a consistent color, either the white of the window or off-white of the gable for all trim. Then I think its a matter of differentiating the bay from the gable end - they kind of blend together with the same siding. So like these examples: The middle white one the bay blends in vertically like yours, but its the same color. The blue and beige houses differentiate the bays from above them. So for yours, the eave bracket detailing is rather simple, so you shouldn't do a lot of busyness. Just adding trim to separate the gable, even carrying that as a frieze board across the top. Adding window head trim (maybe as prominent as a crosshead). Adding a water table trim along the bottom (maybe future full watertable of brick or something). I think I would avoid vertical trim on the bay, to accentuate the horizontalness and balance the skinny verticalness of the massing. I show a window as well, same size as the gable window, if that works in plan. Symmetry forced onto a facade is too contrived, just try for balance. For the porch, can't tell what's going on in this pic perspective but maybe you could just extend the roofline as a shed, maybe the same slope if it works.

Also I should probably add that the roof is slated to be replaced, so we‘re not bound by current roof color.

If the gray/green on the house I posted appeals to you, these from BM could be similar. The color used on the house was a custom mix. Your brick with some black and white is very classic and nice. ETA - Just wanted to say I believe the roof color on the house Patricia and I posted is gray. Looks great with the paint color.

@Patricia Colwell, The stone and brick were formed out of a stucco like material. The stone section is coming off in huge sheets. I'm okay with painting over the brick look area but am unsure about what to do with the vertical trim around the windows. I'm thinking of painting it the same color of the brick. Do you think stucco or siding would look better on the portion that had the stone? Should we just paint the brick area or change the siding? The rear and sides are a vinyl lap siding the same color as the brick.