A Second Celtic Block

I got Cathy's Celtic block fairly late in the month and so had about a week to work on it to get it out in time.  No one's fault; it takes a lot of time to go from Australia to the States to Uruguay at the best of times.  Here is the block with its lovely knotwork as I received it.

And here is what I added to it.  To me, the block screamed for shamrocks, so I added some above the heart.  I also added some more Irish crochet flowers and did two seams.  One seam is a back to back fly stitch that looks like knotwork, and the other is a piece of gimp that I thought added well to the block.  I hope Cathy likes the additions.