Q.What are the best plants to have under a dwarf green lace leaf Japanese Maple in an island
What are the best plants to have under a dwarf green lace leaf Japanese Maple in an island and redo the island for more curb appeal? Or how can I reposition. rocks and flowers. I was thinking of adding in drawf daylilies and increasing the island size. Thoughts or suggestions?

I do have some concerns on your planting location for this Japanese Maple. Most varieties prefer a partial shade to shade planting site.
Perhaps reference the tag or variety information from the tag or greenhouse where you purchased your tree.
These articles will help you with under plantings.
https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-8/zone-8-ground-cover.htm
https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-8/zone-8-groundcover-plants.htm