Specific advice for you isn't possible without seeing the room, the other furniture, and knowing something about your style. So here are a few cosy small rooms as inspiration for you, instead. Beautiful sofa.

First pic: using a lot of art on the walls is one way to make a room feel cosy.

In the second pic below, the designer has cuddled the furniture up together and used multiple shades of the same neutral -- with the merest hint of green and blue -- to make a space that's a little bit grand, but very warm.

In contrast, the third pic shows dramatic use of very dark teal (I think) and rusty red with white, and what makes it so warm and welcoming is the way the colours are combined in a really cheerful rug.

Lovely sofa! Rina is totally right :) It's hard give you advice without seeing more photos of the room. We send you our propositions. Maybe something will inspire you!

More info needed.