For some reason I've always liked the "beaky" version (Mark 6 if memory serves). The other one always struck me as too suggestive of the stormtroopers in Star Wars. Plus, the beaked version strikes me as more practical and suggestive of current experimental facial armor systems:
Here's another picture I took of the sculpt in progress. I've done some smoothing since this was taken:
And here's a side view. I'm not happy with the vents in the cheek each time I sculpt them out. I guess I should stop trying to sculpt this from memory.
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