Hey pradipta it's looking good. But I do see one thing that needs to be corrected.
Look at the drain pipes on the sides. Those bands that are there to hold them to the wall aren't even touching the wall.
It's a minor thing, and easily remedied. Other then that it's looking really good. I like that you changed the color of the sun light. It gives it a bit more warmth.
Looking forward to seeing the next render.
