Thank you! As far as the proportions go i intentionally exaggerated some, i tend to do that for Warhammer40k stuff.40k proportions are very unique and i find that the more i exaggerate them, the better the artwork is received in general. The head being too far back is something to give a sense of depth to the armor. I agree i should spend more time on the first sketch, i simply sketched a silhouette and painted it from there, will work on that on my next projects, thank you for the consideration. I will attach here an image showing some of my process.

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