In this note, we explicitly construct the twistor spaces of some Joyce metrics on the connected sum of arbitrary number of complex projective planes. Unlike our former construction for the case of four complex projective planes, the present construction mainly utilizes minitwistor spaces, and partially follows the method and construction given in  and .
Nobuhiro HONDA. "On a construction of the twistor spaces of Joyce metrics, II." J. Math. Soc. Japan 61 (4) 1243 - 1260, October, 2009. https://doi.org/10.2969/jmsj/06141243