My project

Hello. This is my project. I made my drawing from a photo I chose. For some reason, I chose a turtleneck sweater for my first work. And I realized at the end that this was a very bad idea. I couldn’t fix it, so I left it as it was. Is it possible to fix this kind of mistake at the final stage? I also feel like there’s something off with the rest of the drawing. I don’t think I did a great job with the hair either. Another mistake: choosing messy blonde hair! Since I followed the last lesson while drawing, it could have been easier to draw dark hair. But it’s my first drawing, and I feel like this is the style I’m aiming for. I believe I’ll improve as I keep drawing.
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Update:

The next day, I watched the class again. I tried again by looking at what you drew.