Cool!
Also I hope you didn't mind me using your helmets in my mod. I'm pretty sure I've credited you on both the Nexus and the forum thread. I find your attention to detail on most helmets is great.
I was wondering how you made the turntable mesh? Is that a program?
No not at all! It is is an OSP (Open Source Package)

I've been looking at your work and it is absolutely fantastic. Also recognised many of the helmets too

Thanks mate! I tried to do my best. Sadly, some of the older ones are not as good as they could be. I reckon I could start doing new helmets soon.
I'm using marmoset toolbag. A great rendering program, and doesn't cost that much at all. I highly recommend it!