Oil painting suggestions to improve faster while learning

Tamara A. d'Amato is an Italian illustrator and comic book artist. She studied Illustration, Bande Dessinnée and Creative writing  in Naples and Rome.
She has published a comic book story about neurodivergent love in a symbolic key in the “Clessidra” volume with the independent publishing house "Attaccapanni Press,"  illustrated the children’s book "Il Grillo Gordon e Karasu Piroetta", and self-published the small children book “Perchè il gallo canta?”, she also collaborated as a visual development artist.
Her speciality is pencil and watercolor illustration, which she loves to reproduce both traditionally and digitally.  
She also curates four - handed projects with the “Magnifico League of Artists Association” in her city to encourage people to start and still drawing, and she's actually working on her blog “The fairy Teapot” to help people start drawing.