Please can someone help, I'm new to hairdressing and my friend asked me to do her hair, I said I wasn't confident but she persuaded me to do it. She already had a balayage look which was more like a ombré. I went in with clynol bleach and 20vol to lift out the brown, this was 3 weeks ago and I wasn't happy with the result so this week I went in and out more blonde in. Her hair now has brassy tones and I'm scared it may be ruined. I will attach pics, I would be much grateful of advise as this is worrying me. Thanks x