Putting my idea here for the Flower King take
Asgore is the main boss, but there are two major-major Darkners; the garden shears and his wedding ring, items representing unrequited love (giving away bouquets for Toriel) and what's left of the past he clings to. Right now, I'm getting the idea of reworking a guy from my pre Chapter 3-4 Flower King take who also happens to be a shears Darkner. The wedding ring girl is completely new though, even if I have ideas of how she'd be (diamond hat!)
Shears man is likely superhero themed (comics on his TV?) and would be a subconscious personification of Asgore wanting to still provide for the Dreemurrs and believing he still has his shit together. He will try his damned hardest in literally any form of helping the Flower Kingdom and probably bootlicks Asgore
Wedding ring girl looks rather childlike (halo shaped hat to parallel Kris' horned headbands?) and would reflect clinging to the past, just him wanting to be there for his kids and wishful thinking of "getting the family back together" even if the Dreemurrs are split by the divorce. She'd be mostly low-key/impassive (keyword mostly), but the Flower Kingdom's darkners are near too-protective even if she's not in too much danger
Now I'm gonna finish a certain floral cowboy (yes I made the petals transparent since I was doing his hands atp)