Impressionist painting ＿＿（39）＿＿ include relatively thin, yet visible brush ＿＿（40）＿＿ emphasis on accurate ＿＿（41）＿＿ of light in its changing qualities (often ＿＿（42）＿＿ the effects of the passage of time), ordinary subject matter, inclusion of movement as a crucial element of human perception and experience, and unusual visual angles.