The ramp looks a bit steep -- maybe why no one is using the steps? A brick or cinderblock will raise the ladder angle off the floor and you might see more use of it. Keep the ramp for when the hens get older or arthritic. We lessened the angle of steepness in our ladder and all our hens young and old are using it now to get up and down from the nestboxes.
Thanks - I didn't really know how steep was too steep so I just put it together with what I had. I'll prop a cinder block under it and see what happens.