I think Kureha's on to something here.

Rough commentary translation that he fucking loves this picture (ｿｲﾔｿｲﾔｯ　ﾄﾞﾝﾄﾞｶｯｶﾄﾞﾝﾄﾞｶｯｶｯ♪ is a strange series of sound effects that gives the impression of him dancing to the sight of it), and explains that it's been a while since he's done naked boots, and that he wanted to go for a shiny, enamel-like look on these boots.