Your Anubias look real good ! Healthy plants you got there.
However, it looks like a few, or all, of them are planted right into the substrate. They won't grow that way - they need to be attached to the driftwood - the rhyzome should not be planted - needs to be exposed to the water.
Am I seeing things wrong ?
Unfortunately...You're absolutely right. Going to have to find a way to attach it onto something.