You can also join the hard surface challenge for more learning! or the modeling dem hard surfaces sticky at the top! I notice that there is still surface pinching on the right side one (Though it might not be notable). Intelligent breaking down of those edges can also help...
I've outlined some of the problem areas, and shown a snapshot of the unsmoothed geometry. I'm getting the feeling it's how I'm going about cutting these details in? The issue that comes to mind most is that adding more edge loops to tone those pinched areas down would give a hard edge across the entire side of the…