The first thing I noticed was the proportions, the houses in the ref are deeper, more space. And the bricks are too large, it makes your houses look even smaller. The image for the bricks in the ref looks like the same image they used for the roofing except with some color changes so you could try that as well. Its a great situation to use MR physical sun but you're going to have to plug gamma correct nodes into the textures to prevent them from getting washed out. And since you said you wanted to replicate, there are a few details that are missing.