The next time I decorate by a colour of the year will be the first time. Don't hold your breath. I have nothing against this particular colour but it doesn't work with all the things I've collected over the years, and I am not about to discard carpets bought after hard bargaining with dubious merchants in Istanbul or Islamabad because they don't "go" with a paint colour that someone voted "colour of the year." In its place, I think the colour would be quite nice (better than this years choices, certainly). It's just that my place isn't the right place for it.

Yes, but are you using the gap where rangehood was to centre, or the centre of the cook top. If you have cabinetry along the wall then you can hide the fact that the extractor fan/rangehood is not centre of the cook top. Or that is how it appears in your photos.

Your needs for your home should ultimately drive the decisions....it's tricky jumping in and out on these things, particular after a design process has already occurred, as the projects developed as a result of decisions over various aspects and prioritising of the various goals. Function should drive the decisions one way or the other - THEN we work out how to make it aesthetically/spatially balanced one way or the other..........whatever you do you need to have solid reasoning and justification for all decisions.............. regarding your carport structure, you may well come to the confident conclusion that open private outdoor space/landscaping is a better use of that area for your and your property and that's the best option for you. Be careful not to get confused by differing advice here and whilst all ideas can be valid, the risk is losing your bearing with your own goals. I could argue both sides, a real estate agent may say you're diminishing market value, but you as the owner may prefer a larger rear yard. Not right or wrong, just different priorities and perspectives...... Typically when it comes to this stuff, our instincts are the best compass........but be sure you have taken time to think through options and have the right info.....after years of doing this I can say instinct never fails, but less then ideal outcomes can occur by not trusting your gut Cheers PD

This isn't a personal recommendation as I have not yet purchased anything from this company, but I've been admiring the timber floating shelves on their website. https://shelvingshop.com.au/product-category/floating-shelves/wood-effect-finish/ Or you can buy the brackets and have the shelf custom made in whatever material and size you want. https://shelvingshop.com.au/product-category/brackets-2/floating-shelving-brackets/  I think hardware stores also sell brackets by themselves. I was thinking of going the custom route because that means I can ensure the brackets will be attached to the studs. I believe you can paint melamine after proper preparation of the surface, but I doubt if you can stain it.