SFGate

mmilos Get a much larger mirror. Or artwork if the reflected view isn't very attractive. Needs to be about 2/3rds the length of the back of your sectional. Hang it so it sits about 6" above the back of the sectional.

gillianlf A larger mirror would be better than the one you have. It looks like it would reflect a nice view out the window opposite which is ideal, however if you watch tv in this room it could also create quite an unpleasant glare; so consider shades on the window, or placing your tv so that it isn't affected. I would also consider hanging it horizontally and flanking it on each side with matching art same height or slightly smaller. Or create a collage effect with favorite photos and a larger mirror all with similar dark wood frames. Hope that helps.

smalleyg Would you balance the same sized artwork on either side of a larger mirror or would that look to balanced?

janishill Perfect place for a gallery wall of mirrors, IF that is a window on the opposite wall: http://inmyownstyle.com/2011/02/how-to-create-a-3-d-gallery-wall.html

onewaterone Cut hole in wall and install aquarium. 75 gallon min for this size wall. Seed with freshwater tropical fish and use hallway side for maintenance and adjustments. Any type of tile (in this case white) goes well as a base and seeing how your power is right there install puck lighting for an additional $20-30. Vision and guts.
Actually just making the tile nook with lighting would work and you could skip the aquarium if you don't like fish. Any type of plants could be placed there on a water-feeder to reduce maintenance.

groveraxle The mirror you currently have on that wall gives a most unpleasant glare. For that reason, I would not do a mirror or mirrors. I think a wall of artwork would be more attractive and calming. One large piece or a grouping of smaller ones.

Steve Ohlsen's CameraShots I love the beauty of aquariums, but honestly, no longer want to deal with the maintenance and upkeep. Following that thinking, I've created a series of "Aquarium Art" that you might want to check out if you want an aquarium-like feel without the upkeep.
http://steve-ohlsen.artistwebsites.com/art/all/tropical+fish/all

Alexei Rebrov Art I think the room will benefit from panoramic bright abstraction. How about this one from orange collection?
More panoramas as here http://alexeirebrov.com/collections/panoramic-prints/products/panoramic-print-3765