I think this house (already is really cute, and) would look great in a stark white/black combo or even off-black/black combo. I love shrubs but this one is big enough that the scale looks odd to me. You CAN rejuvenation prune it and see what happens. Or remove it go with the some spiky grasses, cast iron plants, a blue-green hosta, or if your climate allows, even snake plants. I think all of those would look great. I don't see colorful flowers in front of this one. And just for good measure, that house is so cute!

Need advice on exterior paint color for trim, wood around windows and metal around bay windows. We want to lighten it up for better curb appeal.

You only posted one picture. It's hard to reference what you are referring to. Provide pictures of the complete exterior so we have some reference as to how you approach the home. Where is the driveway?

Agree with you that landscape needs a lot of attention. Looks like there is nothing now so you have a blank slate. Adding plants & changing the hardscape will make a dramatic difference in the look of your house. How wide is the area with white rock? Do you know what was there before rock went in? It looks like really wasted space now. No clue as to your location & weather but wondering if small scale pavers would work to create additional parking & would also widen the walkway to house. If there’s soil under the rock, maybe the front 1/4 of the length could be converted to planting bed for small evergreens to soften the whole expanse & create a soft barrier between paver parking & house. The pavers lining walkway on both sides look like trip hazard & I’d remove them so there’s level surface across entire expanse of driveway, rocked area & grass. Widen & increase size of planting beds on right side of house - remove the small brick circle planting areas. A wide curved planting bed across the entire front of house would make such a difference. Again, no location clues except the trees with no leaves so you may be in a place that has a ”real” winter. If so, it’s a good time to find a landscape designer & have plans drawn for spring planting. If you’re so inclined, planting can be DIY to control costs but well worth it to get professional design. Check your local nurseries for help. As for the house, I agee with @cat_ky - house & roof looks like needs a good cleaning. Maybe a creamy white - not bright white - for siding parts & trim around windows The storm door should match window trim - looks like it’s black. Love the blue door color. Where are house address numbers? Add them to right of front door - large numbers. Add a new & much larger porch light. Not black for either numbers or light - too harsh - maybe bronze?