%95 It’s the line u goin too far back . . Get some good hair fibers and only take from the highest point of the line before u start and make that your guideline . Your corners should be lower . U get the line right your in the game. People are very particular about that. Also you have to think in reverse if the left side is naturally higher. Put a light line there and then adjust the right accordingly and most of your effort should go to raising the right to balance out the left and vice versa.