I knew you could do it!  Great job!  We are now ready to start painting our flowers.  You do not have to trace your pencil with anything.  You can go right from pencil to watercolors.  Paint your flowers any way you want.  If the colors mix together while you are painting, do not worry!  That happens sometimes when you paint and it can look beautiful!  If you do not want you colors mixing together, let them dry before you start a new color.