His appreciation for Gerard Dou , who had already started to concentrate mainly on paintings of interiors and tronies is certainly no less than that for Rembrandt and Jan Lievens .
Angel expresses no clear consciousness of a hierarchy between the different genres .
Angel 's appreciation for Gerard Dou , who had already started to concentrate mainly on paintings of interiors and tronies is certainly no less than that for Rembrandt and Jan Lievens .
Angel expresses no clear consciousness of a hierarchy between the different genres .