Looks like you have lots of storage on both sides of the room and the closet. To warm, the space I would find a small lamp to add to your desk and then a vertical piece of art to hang over your workspace or a tryptic of art since you have two framed computers below it- you need to do something other than two pieces to break it up. Maybe also invest in a more attractive wastebasket which will help make the space feel more homey.

I would rather work in a space where I could see outside. AND I don't want my back to the door. Can you "float" the desk perpendicular to the window with your back to the wall where the storage/printer is currently located? Move all that to the desk wall with some art, plants and nice things to look at. Maybe even a wall mounted TV.

My office is also in a small room; my window isn't as large, but I can look up at the Crepe Myrtle outside and watch the birds and squirrels.

Looks like the dog has the best spot in the room at the moment.