The brick looks OK, but a fire place is something that should be where people can sit and gather around and enjoy the warmth- don't know why they sometimes stick them in a far corner and this one is so close to window glass which could break if heat becomes excessive. Do you use it? Me, Id be tempted to remove it or brick it up and use chimney for a pellet stove in a better position - would have to see the layout of the room though.

I disklike all the contrasting colors of brick. If you decide you want to keep it, I’d consider making all the bricks more uniform. Here’s a before and after of a Chip and Joanna Gains remodel. There are plenty of tutorials on the process to be found online.

Take a picture from farther back, straight on if possible, we can mock things up.