I would either get a light colored brown ottoman that converts to a table or get a clear lucite table to keep the area light.

yes to those ideas but add a glass top to it to wipe off spills,

I was looking at your space and it looks like you have plenty of it ,so I was thinking of something like this

New House - Southport, CT · More Info

I personally like the amount of color in your room. You have a soft blue chair, a pop of green from the plants, and that cool rug

its calming which is good cause it's part of the bed room. I wouldn't add a bright ottoman