Where are you generally, both USDA growing zone and nearest large city?

Where will the porch be?

Is this a landscape you created and so have reasons for the layout, or is it one you inherited with the house that might not fit your needs? If it is your creation, could you explain your goals in making it? If it isn’t yours, think about what you want from the front yard: flowers, lounge area, kids’ play area, shelter from a busy street, etc. and share it here. Think also about the amount of interest, time, and energy you have to maintain the landscape.

Right now it looks like the only winter interest is the line of evergreen shrubs against the house, and they aren’t particularly interesting because they are a hedge that blends in with the paint on the lower part of the house. In my area I would want more evergreens or plants with colored twigs or interesting bark or branching, including some farther out into the yard where they could be seen from the house or porch windows during inclement weather.

It also looks like you have some low-growing weeds or else a really irregular ground cover between your perennials along the drive and between the rock wall and what I assume is the road where the first photo was taken. I would want relatively dense evergreen ground covers with minimal mulch between them, added just until they have spread enough to fill the space between the perennials. This will help reduce weeding, though it will still need to be done.

What is the story with the large expanses of gravel or mulch? Do the areas get used as patios (and if so, do they work comfortably in that role?) Or do they have another function such as a foil for outdoor sculpture or a kids’ play area or are they mostly left empty as in the current photos?

Being left to imagine the addition of the "oversized grey porch" I'm going to suggest that the dug out area for your pavers is too narrow. If you truly want a modern look, double the width of the paver path or make it match the width of the new porch configuration, whichever makes the most sense.

I can't ID the twiggy tree next to the house and hose bib, but if it is destined to grow to a full-size tree, remove or relocate it.

Your garden has a rustic look to it, so I'm guessing this is a suburb out in the foothills of Southern California? Totally wild guess, but the gravel areas with the patio seating lead me to assume average rainfall is scant enough to make fussing with a lawn impractical. It works with the stacked rocks and boulders, but I would tuck in more alpine or rock garden plants here and there. Simple choices might be iris, alyssum, anigozanthos, or possibly succulents if your temperatures aren't too low for them.

Again, in keeping with your desire for something modern, the lamp post with numbers should be removed and replaced by something more 21st century.

As Kim suggested, make the path wider. It is one of the things you can do to give a property more appeal, and has the practical value of allowing two people to walk abreast.