Here's my 2nd apple, this one was done with Acrylic brushes.
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Also, after comparing the acrylic apple to the airbrushed apple, I decided to try and give the airbrushed one more volume. This apple was problematic for me because a number of reasons, but mainly because when I started it the light source was very even due to the classroom's fluorescent lights. I think my adjustments helped a little, but I lost some of the detail.