First ever shots of nature at its finest. c&c please

[Fotografer]

1. I tried capturing this flower but it seems like the bulb at the top is what focuses well. Is white a hard color to capture?</p>
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<p><img src="http://i71.photobucket.com/albums/i125/eric-holmes/PictureorVideo084.jpg" border="0" alt="" /></p>
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<p>2. This was my favorite of a butterfly.</p>
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<p><img src="http://i71.photobucket.com/albums/i125/eric-holmes/PictureorVideo067.jpg" border="0" alt="" /></p>
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<p>3. This was a bee I captured. I wish he would have faced me lol.</p>
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<p><img src="http://i71.photobucket.com/albums/i125/eric-holmes/PictureorVideo063.jpg" border="0" alt="" /></p>
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<p>Any comments to help add to these would be appreciated.</p>
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