The problem with the propeller hub is not that the colour is too dark but that its specularity is set too low. Thanks for pointing it out, I'll correct that. One thing I have learnt to do on AH III bare metal skins is make the base aluminium colour darker since the combination of specular and environmental lighting can make it look too washed out otherwise.
The blurring of the yellow border on the second screenshot is something to do with how AH III displays the skin in the middle distance. The border on the skin itself is quite sharp at this point as you can see in the other screenshot. The anti-glare panel does extend a little too far down the fuselage towards the tail than is historically correct in order to overcome the banding across the top of the fuselage on this 2005-vintage AH II shape.
Around the time the new game goes live I imagine Skuzzy will convert all the existing AH II skins and update the skins submission page both to the new file format. I've got a number of other AH III-format new or updated skins waiting to be submitted when this happens; two Ki-43s, a TBM, a B-29, a Hurricane, a Panzer IV H and a Camel. I doubt I'll submit any more skins in the old AH II-format prior to this happening.