ISO looked fine to me....as practice shots they are rather pretty so good job there too. If anything shooting at a wide aperture would mean you had to be really accurate with the focus so I don't think that's a problem either. You've got it dialed
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Andrew -
My pics on Flickr
Canon 7D, 24mm f/2.8, 50mm f/1.4, MP-E 65mm macro, TS-E 90mm, 100mm macro