Do you have any photos of the space?

It depends! There are some rules for basic chandelier sizing. Rules can and should be broken once in a while, but it will depend on the furniture scale, size of the room, ceilings heights, overall style of the house, etc, etc. I don't think anyone can guess with just the 2 dimensions you gave.

Attached is a photo of the chandelier. It's taken in a store so there are some other fixtures in the background. I can send some photos of the room later. The room size is 21'8" long x 13' wide. Ceiling height is 8'3". Thanks.

Here's another photo.

that will work just fine baring in mind your ceiling height.

As long as your ceiling is high, you should be just fine it seems!!