Otagaki Rengetsu ( 1791 - 1875 ) was a Japanese painter. Otagaki Rengetsu s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 2040 USD for Nightingale and pines, 1872 in 2005 to 3091.32 USD for An oritatami shikishi in 2010 , based on the size and medium of the artwork.