Board Thread:General Discussion/@comment-25926288-20150413002300/@comment-6302057-20150419002816

Why was Zelena returned to her pre-curse green-skinned body? Simply passing through a portal into another world should not return old facial features (as shown when Gold traveled with the others to Neverland), and should not take them away again (passing into our world through a portal could not have removed her green skin either).

Also, after she died, the magic in her pendant was somehow returned to her, therefore she no-longer needed the pendant to perform magic, which allowed her to use the clover to disguise herself.