I would replace single picture with 2 to 3 pictures that are vertical possibly over the headboard. Depending on the size, display them across your headboard so that they span further than the current picture, say across the headboard but inside the shelves. In addition you might want to consider some sort of lighting that you can attach to the headboard that you can direct down rather than thinking of table lamps. I think the shelving can work, but for me would be collectors of things and never looked very nice. If you're different than me maybe you could start with something low on that top shelf with just some small things on the other ones. Good luck

Why not something with a red shade to pick up your cushion and vases? You're furniture is quite contempory so it should be easy to find something, otherwise go safe and get something with a metallic silver look, that way you're free to change up the cushions at a later date if you like.

An electrician can hard wire it and run the cord out the base. Just turn the cord hole to back and silicon closed. Or get custom made

I can see quite a few on the website that would work. I like the ones that look like a tall barrel too, and they fill a corner nicely, but I'm not sure if they are so good for reading, and they might put a glare onthe tv? I hope someone else chimes in with some thoughts.