Vintage mirror wall

How to create a window mirror on a budget I really wanted a large window mirror for this space but when I became to search, they were looking at £200+ and with decor fashions changing all the time. I didn't warrant paying that for a mirror. And alot of people were creating them by sticking the mirrors directly to the wall but I wanted to be able to frame and hang mine, to give it more of a vintage aged look. So keeping costs down a found a old piece of hardboard in the shed and painted it so