In my opinion, the production used space, levels and proxemics very effectively as it showed their purpose of its use.
For example. When Mrs. Lyons (Vivienne Carlyle) didn’t want Mrs. Johnston (Marti Webb) near the baby. Carlyle was positioned stage right in relation with Mari Webb who was staged left. Carlyle moved back away from Webb to show that she didn’t want her near the child and in doing that, she clutched the child close to her.
Carlyle effectively used the idea that she didn’t want Webb.
Webb Carlyle Audience