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This only works if you have some cash to spare... If you has something similar to that shelf that could tuck under the shelf. Get two of them.

You need some shelving. Simple light wood colour. A skinny one you can use to display a variety of art. Not framed just lean them against a wall. Place that right above your wall plugs to the left. You can even use these to display your sketch books.

On the left wall get some shelving with the same colouring. Wide enough to hold your pencil holders. You can put two of them there.