The picture provided is not helpful for landscape suggestions. Could you stand in front of the door, at a distance, and take another photo? We need to see the full yard and sides. After you take the first picture, stay in the same spot and take a picture aimed at the left side and then the right side. Panoramic photos will not work as they distort. Three photos is best. Is the door currently painted or natural wood? Are you willing to relocate the bench? How much time do you have to maintain a garden? I have never tired of the traditional white house with dark green trim.

Looking good with the roof, washing and cleaning out around the tree area. I agree that the yews need to be shorter, even by 6” so they don’t look so overwhelming to anything you might put in between. Take out the scrubby bushes and add something less structured like variegated spirea (bridal wreath). Get the 5 gal size and plant 1-2 so the space looks filled but not crowded. Add more of the giant liriope across the length of the front porch. Focus color on the porch in good sized pots; if you can, curve the beds in front of the liriope and add some color plants there, too. I like your idea of using white flowering plants — if you put some in pots, use pots in a solid accent color like bright (not lime!) green.

Step one in my book would be to remove the landscape fabric, unless of course it is just there to kill off the grass. It will be an ongoing annoyance, a soil sourer and weed habitat. Step two would be to remove the shutters since they could not cover the windows, even if they were real. Flower boxes can look great but if you mean a box attached to the wall you’d need to consider how it would be fixed, considering the weight, how it would be prevented from staining the house wall when watering and how much time you can devote to maintenance. They need frequent watering, dead heading and feeding and displays usually need changing seasonally. Flowers in the ground below the windows would be a much less labour intensive option. Repeat plants to avoid a blobby appearance. The hosta looks happy so I’d add four or five more of the same variey. Then fill in with multiples of other plants. People will need to know your location to suggest climate appropriate species.

When you look at your home what says 'dated' to you? To my eye; #1 is the garage door. There are newer styles. #2 The front bay window. I wonder if it were clad in copper if it would look more modern? I see plenty of people getting new windows to rid themselves of the semi circles that were all the rage last decades, but that is one costly fix. Be glad you only have one offending widow. #3 the trim color. Dark seems to be the latest thing to do around here. That would mean your garage door going dark too. Front door color POP is popular here on Houzz--not so sure it's that HUGE in real life. #2DD wanted help painting her door last spring. Driving around the neighborhoods we didn't see a lot of examples of colored doors to help us choose a color. Seeing your neighbor's garage door is a good caution as to color choice. Remember the greater the POP the sooner you will tire of it.