I found a website that might be quite helpful for you http://www.colourtouch.com.au/ to visualise what colours and finishes could look like on your house. You can choose a style of house that closely matches yours then choose a number of set schemes, or start with a blank canvas and play around with any colour / finish you like.

It looks like you home has had lots of renovations and changes over the years so I wouldn't be too concerned with getting a new scheme that is completely authentic, but something that works with the elements that you can't change easily. The large bricks were probably a smooth faced concrete block, not a terracotta brick , I am not too sure what the pock-marking is under the window? Can you share a photo of the brickwork near the front of the house? Best of luck, Dr Retro of Dr Retro House Calls https://secretdesignstudio.com/services/dr-retro-house-calls/

One to the left is structural and the other has the fridge. The high bench is outdated and closes off the room, my benches are 80’s pink, we want to close off entry to the right as it is next to master bedroom entry.. change island bench to all drawers and move fridge to where pantry is. Where the right hand entry is, close that off for walk in pantry and create entry where brick was currently is (right one). So not much to change, hope this makes sense. Need to update but want to keep it warm and texturally inviting so not cliche/cookie cutter if you know what I mean

I think your idea of going all white would look fabulous, even your retaining wall at the front, add lush landscaping, gorgeous planters, it will look great against the white and give that beach look you are after, check out 3 Birds renovations for inspiration