Our bathroom is the smallest room in our house. Width = 5 feet and depth = 8 feet. This is this the size of our bathroom. What does this size give us ? A step over bathtub with shower, A small vanity with matching small medicine cab, a toilet (of course), shelves over the toilet, a floor to ceiling (skinny width) closet to house things like towels.

There are discrepancies between the two plans you have provided, so it is difficult to understand what has been built and what is proposed. That being said, the powder room will have more of an impact on the garage space than you are indicating, and think that will have negative impacts on the garage which you will want to avoid. The location by the dining room and stairs will also require significant changes to the plan in that area (powder room is still represented too small). The powder room adjacent to the pantry seems like a great place to put it, or in the ancillary seating space to the right of the main living seating. That seating area does not seem to have a great functional importance except to have the dining/living/side living space extend across the whole house, unless there is something happening that isn't apparent from the plan view alone.

Priyanka, Wallpaper on doors is not a good idea. You can go for laminate panelling on the wall and matching laminates on the doors. You can choose a veneer as well. The space is too wide for a single door though. You will have to plan accordingly. I am assuming you are talking about the brown door and not the other black door in picture. Nitin CORNERSTONE DESIGNS Bangalore

Go for a statement on the long wall you see when you swing the door open! It's the first thing people notice and adds flair. Avoid behind the toilet—it's a weird angle. Above the sink could work, but make sure it won't clash with the mirror. Let that wallpaper shine as the room's star!