Now, I did this project without actually reading the instructions, just going by the caption and the picture on Pinterest, and I think it actually turned out pretty well. She actually says not to use glue, but she also does the craft in a slightly different, and seemingly more complicated, way.
I used a pencil and drew a picture on a canvas, using a drawing I found online. Then, I outlined it with white glue and let it dry. Finally, I used a sponge brush and some acrylic paint and gave the whole thing a couple layers of color. And, voila! Art for my daughter's Hawaiian-themed room!