Соловьев никогда не считал себя знатоком живописи, оценивая картины исключительно по тому впечатлению, которое они производили лично на него.
My translation:
Соловьев, having never considered himself knowledgeable about paintings, appraised paintings only based on the impressions that they made to him personally.
Is живописи just paintings or all art?
And картины are those paintings or are they other types of art?