To me shiva and parvathi are the eternal lovers. He did burn down a city to avenge her, that is how deep his love for her is. So I wanted to show them in an embrace dancing, as his utracha Mala and her jewellery dances in tune to them. Also if you're upset about how close they are, let me point out to you that before the British took over India, the sculptures of our temples were similar and actually there are many sculptures at temples depicting conjugal union of Shiva and parvathi. Here their lips are touching but it is not a kiss yet. It is a pose that is seen usually when the dancers are a couple. The intimacy of eternal love.