Complex sentence: Serpotta was born and died in Palermo; and may have never left Sicily, which is striking, since he showed a monstrous skill and facility with stucco sculpture, which appears to arise without mentorship or direct exposures to the mainstreams of Italian Baroque.
Split into simpler sentences: Serpotta was born and died in Palermo; and may have never left Sicily. His skill and facility with stucco sculpture appears to arise without mentorship or direct exposures to the mainstream of Italian Baroque.