One project in art class in high school, I remember my teacher (after much frustration on his part) asking me to look at my work from across the room while he held it up. This was a portrait I had been shading. I didn't know what his problem was with my work, but I did as he asked. When I turned around, the face on my portrait had completely disappeared. It was a very powerful lesson for me that I never forgot.
And yet, I did forget. Another one of the critiques from my VQF entry was that I lacked contrast. At first, I didn't get it. Then the memory of my teacher floated through my head. Looking back on my past pieces, and my lessons I see that the only pieces that have good contrast are the ones with white or cream backgrounds. Working with colors though seems to confuse me. I pick colors based on what I like, not on what would be best in my piece to make it 'pop'.
What struggles do you have in your artistic work?