What a cute house!

I would not clutter anyone of those places with items, I would focus on the landscape, and consider removing the shrub right in front of the porch area. Planting something taller in the flower box to take up more visual space, and possibly put house numbers there. The porch itself i think would become more of an obstacle course if you put more than the planter you have, perhaps spray paint the pot itself a fun color like teal..

Well, if you can’t actually make it bigger, there’s just a few things you could do. Removal of all plantings right in front of the porch would make it FEEL bigger. Just have mulch there. Your pavers are nice - let them be seen! Extra flower pots should be removed. I might have ONE on the porch or the step, making sure it’s a big one. Bigger than what you have now.

Don‘t clutter your lovely home with ‘stuff’ hanging on the chimney or above the planter.

Add a classy light fixture over the front door. And a colorful rug.