TBH I could barely tell the difference when the acorn came out, but I never saw them side-to-side. They do both have brass hardware. I have a walnut Hailey and thought about getting an acorn Maggie, but the color was so similar. The lining may be different, the walnut Hailey has a dark pink lining, I don't know about acorn.
Here are the drilldown pics of Maggie in acorn (1st pic) and walnut (2nd pic), the acorn does look lighter and more reddish.
GL! They're both beautiful.