If you're not sure if you like part of a painting take a photo and upload it onto your computer screen. I thought I liked this background until I took a photo of it. One of the most important things I'm learning about oil painting is to step away from the painting periodically to look at it in a different light, at a different angle, etc.
The new background. Maybe almost too light but I like the motion and movement in it. To finish this I will take Daniel Edmondson's advice and lighten the table some and enhance the shadows and color on the two onions on the right because those onions are the focal point.