Hi definitely remove the x bars on the deck balustrade. Landscape close to the house so it grounds the house. Trees will make it look less bare. Chose some that work for your area, that are evergreen, and are not going to grow really big. With a really plain house - dark colors will make it look better. Dark Grey, or black with a warm tone so it doesn't have a blue undertone in it. Make sure it is a warm grey or black. Use green foliage around it. Paint out the pergola in the dark grey too or white if you want a different look. Fill in the balustrade where the x is removed with plants in front of those areas. Grow a vine up the pergola that is nice.

Blue gray window frames match the funky roof. The cedar is diametrically opposite on the color wheel as a orange tone. Usually the browner grays (sort of the light shade now on the stucco) do better with cedar to say modern, but since you have the blue gray, allow me to suggest that you just go as dark gray as you can - nearly charcoal on all the weatherboard. If you are in a high heat area (palms might or might not be - that might be the ocean on the horizon which might me an onshore breeze all the time) then you want a white. Not a blue-white but a warm white - bm maritime white is a good choice. With the cedar and the two blue-blue-gray elements, you need neutral without tone.

Congrats on your new home! The entry would look up to date if you lined the underside of the porch, that white wall, and the outside of the glass wall with spaced horizontal battens. ModWood or EzyWood or something similar. You could put the hanging planters on the white wall battens and they would really brighten the entry. You could also replace the spotlight with something more elegant.

Yes to all those ideas. I believe your cladding is unpainted concrete bricks (is it called Summerhill Stone?) in that (boring) fawn colour. My house is same but was painted by previous owners. It looks so much more up to date and the surface is lasting very well; no signs of peeling or flaking. So despite needing to maintain a painted surface, I think painting is the way to go. Alternative is a costly plaster job. Then the entrance - yes, wide generous steps onto a wide deck or patio, some vertical or horizontal slatted panels for protection or privacy as needed, clear roofing for protection and to allow light to the rooms. And paint the front door a vivid color to indicate the entrance. Just make this area feel generous! Dependent on the adjacent rooms and which direction the house faces opening up one or more of those windows into sliders or stackers would be great. Plants in big pots are good too, add colour and texture - and you already have some there. Good luck - I love the idea of turning an ugly duckling into a beautiful swan!