Hi, no worries. this plant looks how she should look close to Harvest. Showing nice Autumncolours is just another sign for her ripeness. So go on like you did , check trichomes and as soon as they are milky....harvestttime is near.... The pistils of gorilla mostly dont turn orange, they tend to stay lightgreen / white. So only the trichomes and the swollen calyex tll you how far she is... happy growing. If you can give her more airflow so midlew has less chances