A picture from further back would help us get some context, as well as a description of what you like or don't like currently

Added pic. I want a style that would go with the lamp. Open to suggestion

Need context.

Stand further back we need a pic like this.

We need to see three walls and the ceiling.

How big is the room?

Is there room for furniture?

Are you looking for art for the wall?

It’s a main stairwell. Not a room

OK so it's the landing that has the purple wall. Great

Select a canvas for your wall. if you select a paper print and have glass over it you will have a problem with the reflection from the light.

See GreatBigCanvas.com If you give them an email address it's likely you will get 50% off your first order.

I would paint the purple wall the same color as your other walls.