3 agar plates were inoculated 2.5 weeks ago, so far only one of the plates has growth. In the agar plate pictured, there's a white fluffy ball near the edge of the plate (initial inoculation point) and a strange, opaque, mycelium-like growth around it. It's colored differently and is surely not as dense as the fluffy white stuff, but still seems to be mushroom mycelium. The white ball showed up after one week of incubation and its growth has been steadily declining, however the opaque stuff around it has been proliferating since first signs of growth.

Is this plate healthy? Which part of this plate (opaque/white/both/or none) should be transferred to a fresh plate?

impossible to tell - need a clearer picture.

Looks a bit feeble if you ask me. Try leaving it another week, see if it toughens up.

If you only have a quarter sized growth after 2.5 weeks, something is wrong. Transfer the largest, most dramas section of thizomorphoc growth that you can

Thanks for the input everyone. I'll let it go for a little while longer and see if any rhizomorphic growth pops up before I do another transfer.