I iknow I will get beat up for this, but I could see those as mirrored doors, and the woodwork around them done dark to compliment the headboard you are planning. I think it would give the effect of a standing floor mirror, since it is a narrow closet, not a huge one.

Based on the color of your driveway and your roofing, I would lean towards a complementary color to those, such as a stoney/earthy grey for the siding. The trim is a little bit more difficult of a decision, maybe a light grey, but ditching the white is probably a good idea based on the surrounding landscape. I would also address the exposed foundation and make that disappear a bit, something neutral and in the same color wheel. The house appears to be in pretty good shape from the pictures you posted and if so, keeping the colors the same can save you some money because you can simply apply one finish coat as good maintenance vs. changing colors, which always requires 2 finish coats, adding roughly 35% to the overall cost. Although, 2 coats will increase the lifespan and let you pick exactly what you want so it really comes down to what your intentions are for the property. Do you plan to live there for more than 5 years? If so, go for the color change and enjoy. But if your plan is 5 years or less, a one coat, same color paint job probably makes more financial sense.

For some examples, I just did a simple google search of mud room door colors and got plenty of hits. The darker gray colors can look good as well as an accent color. Are you currently using an accent color in ajoining rooms? That can be a start.

Shutters should appear to be operable, so they would need to be as wide as the window... so if closed, they would cover the window. So no shutters on your house. I agree with taking out the boxwood that have been butchered. If you take the bed all the way to the sidewalk, you need a pocket bed on the left side. Yes to learn more about pruning the Crepe Myrtle. Ever heard of Crepe Murder? It's a thing. LOL Honestly you don't even have to prune them. We had several over 30ft tall at our last house, but you don't want one too tall right next to the house. Having lived in the South all my life, I don't have a problem with the grass since we get rain. No idea where you live, but the grass looks healthy. Unless you want to spend every weekend gardening, or hire a gardener, I would not go to the extreme of removing the grass. If there room for a wooden bench on the front porch?