Working on this stacked button brooch and I'm a bit stuck and hoping I can get some good ideas here.

Here's where I'm at so far. I've stitched up a stacked pyramid but I'm not sure where to go from here. I'm not sure that I don't need to do something to hide the sewing thread better but Mom said she thought it looked fine as it is.
I was thinking of adding a bit of lace edging in between two layers of the felt to both make a finished back and add a little bit extra. I think it needs a little bit of something to turn it from nice to wow but can't quite figure out what that would be.
Sorry for the photo quality. All of the buttons are the same exact color despite what the picture looks like.
Any suggestions?
YMC
aka Michele





























