It is hard to tell from the photos, but is the table centered on the wall?

The table is centered on the section of wall between two arches.

You are going to be limited by depth in terms of getting very ambitious -- a lot of lamps will be ruled out just because they can't sit there without the shade hitting the wall. Some low side lamps might fit, though, or one with an asymmetric shade. Maybe a bowl of some sort, picking up the gold hues?

A deeper top would look more balanced and would have allowed more space for lamps, etc. can you use the current piece of granite for a bench or something and add a deeper top? I love the corbels!

Just had the granite top made, and any deeper would have narrowed the hallway too much. That's going to have to stay. Changing the art for a large mirror is a great idea, but then I lose any color in the hall. How many objects would you put on a console? What type fit in an entry? With the shiny granite and the rough corbels, what objects would stand out? The walls, floor, corbels and granite are all beiges, browns, and golds. Should I keep the objects in the same shades for a calm monochromatic look, or go for big pops of color? I'm paralyzed by this decision......I don't know why.

Love the table and I agree with a mirror as opposed to art. You can use narrow shade console lamps or a nice floor lamp to the side. Hurricanes with LED timer candles, vases, a dish for keys would all be narrow enough and would look great on this table. I would buy returnable items and try both monochromatic and bold looks. Sometimes you need to see it in the house before landing on a mood. For a monochromatic look stick with browns, golds and creams. Pops of color could be reds, yellows or oranges. To balance the gorgeous, rough corbels I'd bring in a wrought iron look lamp or a sculpture.

Try a tall skinny lamp on the left side, The shade can impede in the art space as it makes it more interesting, Some ideas:

Use the basket on the floor for magazines or small pillows, use the platter flat for keys, a tall skinny lamp on the left side, platter in the middle, one of the other objects to the right. Just for ideas. You could also use a small ottoman under instead of the basket to use for removing shoes:

I thought of the same thing as acm regarding the lamp shade space. Possibly a shade similar to this?

Here are some ideas that we looked up and liked:

:

Thank you all for the great advice. I'm off to shop!