It's great to keep going with this method while adding new techniques. Here are some challenges I encountered. I had a difficult time getting the right consistency of the puddle. Some puddles are inky while others more diluted. I learned that the darker colors tend to become opaque more easily while the yellow and greens need more pigment. I also saw some splotchy blobs on the piece and was trying to recall why that may have happened. Also, the shadow on the table with my mixture was opaque and I wasn't sure how to do that differently in future. I really liked adding new pigments and the effects it made on the piece. Practice makes progress.