Doesn't יפה also mean "nice"?
Only about objects, "nice-looking" objects. When talking about people it means "beautiful, pretty, handsome".
Hen son’ot yeladim nekhmadim.
would נעימים be appropriate for nice?
More like sweet, but basically. I dont know if it should be accepted, but language wise sure
pronunciation: https://www.duolingo.com/comment/17563437