IIRC you are in Connecticut? How much snow is on the ground when you intend to put the house on the market? If any more than a couple of inches, don't bother with any inground landscaping. It won't be seen and as others have mentioned, new owners will prefer to do their own. I would have some sort of container with color on the front porch or steps. Even cut just stems with berries and other greens.

Is that a yellowish cream on the neighboring walls? Try that. It works well with the trim and the floor and your stuff.

Congratulations on your new home! Much will depend on your budget. Focusing on your front door area... If a new front door isn’t yet possible, your best bet is paint. In a happy, vibrant color. Blue, Green, Orange, etc. Something that is happy! If a new door is a possibility, I would lean towards something that is either a natural wood or has a mid century modern look. I would choose a larger light for your entrance, too. Your home reads “modern” to me...so I would look at those with a contemporary look. A fun mat for your entrance would be nice. A brightly colored ceramic pot that you can plant with seasonal flowers would be nice, and if there is room, a cute bench, too. All of these cosmetic things can be inexpensive. A bigger budget would include a new garage door with windows. Again, look at those with a mid century appearance. In the years ahead....you will probably need to paint your home. But...that is for the future! Good luck in your new home. And...enjoy the journey!

Heres a picture of the house. The wood around the windows and doors will be painted white and the front door will be blue.