Next fill in your subject matter base colors saving the details for last. Adding all you backgrounds and foregrounds basic colors before you create the final details. Stopping at each step for complete dry time. the only place to do fixing is at the basic colors step going back after the fill in is impossible. If you want to find out more, drop me a line and we will continue this class with anyone interested in painting with tulip paint. PS if you are a novice starting out go the thrift store to get t shirts inexpensive as well is the paint