The work May Morning or Trees and Clouds can be dated to 1903, a period in which Pellizza distances himself from the committed subjects linked to the strictly topical to devote himself to simple and straightforward nature, a source of sentiment and poetry. The canvas, originally square, is subsequently deprived of about ten centimeters in the lower part, to subtract a large swath of land and lower the horizon. The gaze is drawn in depth by the two central trees shaken by the wind, framed by the flourishing branches that branch off from the trunks in the foreground. The diffused light is made by dense, elongated and horizontally directed signs in the sky, and by faster, minute and different touches in the leaves that discolour in it, distributed according to the rules now mastered of a pointillist technique that "is becoming more and more easy and quick as it is necessary to be able to translate the fleeting effects of nature seen in the open air ”, and which exploits the changeability of a draft that“ should not be all dotted or dashed, nor all paste; nor all smooth or all rough; but it varies as are the appearances of objects and nature ”.