It's Nataraj, Lord Shiva dancing the vigorous jumpy tandava dance with its physical, mental and spiritual benefits.
He kickstarted human civilisation just over 7000 years ago, gave us the institute of marriage (responsible dads), the systematic sciences of music, dance (including tandava) and spirituality (tantra) and He was the first of the great tantric Guru's (Taraka Brahma). Sadly He is now just mainly known to Hindu's and Indian tantrics, although He is said to have travelled around the world during His life time.
The eight-pointed star is part of my pratiik, the symbol (yantra) of leading a balanced life (socially and spiritually) leading to enlightenment and liberation.
Not visible are the skull (or live snake) in His left hand and the dagger (or fire torch) in His right hand, symbolizing the negative (death or animality) and the positive (life or dharma) between which everyone is struggling forward in their lives.