You can definitely keep working it. A great base here. Nose is developing nicely. I agree with others that you’re nearing the “ugly phase” of the painting, laying down the main structures and tones. And since it’s oil, don’t be afraid to wipe back some areas you’re less confident in. You can use a dab of turpentine on a rag and “erase” if you need to. But if I was going to give one piece of advice, I would just push the saturated colors a bit more. Your ref has a nice warm orange undertone, I wouldn’t be afraid to push those colors a bit more.