First, I think you should paint all the furniture either white or black, depending on the color of your brick walls. Planters to hang on the rail would add color and not take up floor space. You can buy ready made or make your own. Square boxes for the corners would add extra seating with a decorative pillow and add another place for plants. Do you have a roof of any kind? Hanging some sheer curtains in the corner would add another texture and color too. Hope you get the camera working, would love to see a picture of your space. Good luck.
This is gonna sound weird but it works, fill a heavy duty sandwich bag with water insert into the shoe and put in the freezer. When the water freezes it expands and stretches the shoe. Just put it where it needs to stretch and when you put it in the freezer tip it up so it stays put.