Hi Jonathan,
I did make a comment on the first one, as for the other I find the lighting a bit flat and once again the debris in the lower right corner keeps pulling my eye from the central theme. The shots are both sharp and well detailed but along with that comes everything else into focus. I would try a bit of angled light to accentuate the curve and contours of your subject and of course have a bit closer look and try to remove extraneous debris where you can. Keep up the shooting and posting, look forward to seeing more of your work. Hope this helps.
regards
Rick
Posting1.
Posting2.