From Longman Dictionary of Contemporary Englishminiaturistmin‧ia‧tur‧ist /ˈmɪnɪtʃərɪst $ ˈmɪniətʃʊr-/ noun [countable]  BOAVPsomeone who paints very small pictures for money
                                                    
                                                Examples from the Corpus
miniaturist• Following a visit to London and Paris in 1849 he returned to Aberdeen to establish himself as a portrait miniaturist.• What this set gives us is primarily Kreisler, the miniaturist.• Note also the 1709 portrait of the miniaturist Karl Bruni by Jan Kupecký. 
