Is this built and you need furniture ideas, or do you have questions about the plan?

Since you already have an exposed brick wall that you are working on you can try to give this space a subtle industrial look, some photos to inspire you: Do consider adding pendant lighting, you can also give it a chic look by mix and matching metal chairs! Hope this helps!

Thanks everyone, I'm planning to get my floor tiled up soon, and then later the whitewash. So before all that, I wanna do away with the construction part, if required to transform this hideous corner. I had the roller blinds in my mind to hide these iron windows, but I will also look at options for changing them windows entirely if budgets allow. I might have to use some false ceiling work as well. Posters, I don't think can find space here, but a lounger sofa-bed is a surething with some nice lights. Please do share some pictures of the lights and loungers and floor tiles if you may, for suggestion. I'll be obliged. Thanks again!

Living Area & Vestibule Area 3D Render & Elevation