As a dweller in a 60s bungalow, we have had a few efforts like this on our estate, all have failed to sell.
You've kind of ruined it, you have removed a mature garden and replaced it with the odd weed.
You have painted the wooden cladding and existing garage door black, which looks grim, and is just paint, you should have replaced the cladding with zinc or tile hanging or just sanded it back and oiled it - its likely cedar, which should just be oiled.
Interior is bland and looks non lived in - its neither a warm family home, nor a cosy retirement place - sorry, poor effort
60s architecture is somewhere between brutalist and modernist it doesn't need help to be more brutalist, that's a style that has been out for decades.