Salad

Hello everyone, just wanted to say that im new to the forums and what I'm trying to seek advice for. So I tried recoloring a Valkyrie helm for a friend(thinking it would be easy) and created the photo i posted. Would anyone who can help me fix my problem with steps on how to change this or if they even have a video they used before and they can link me. Every help and advice will help me tremendously and I thank you all in advance for helping or trying to help