Having trouble deciding how to optimize the layout of my bedroom while still having adequate storage space.

I'm planning on putting the king bed with this bedframe against the 140in wall. http://ecx.images-amazon.com/images/I/81YiAhZWh-L.SX425.jpg

I'm not sure where else to put storage. Would a storage bench by the right window make the room look too cramped? I could also put a tall wardrobe beside the closet? or would it be best to put a chest drawer at the left / right side where it's 52 in or 54 inch?

Thanks!

Here are the dimensions below