1 and 3 look overexposed. The second is either camera shake or off-focus. The last is the best of the set, but I would crop off from the bottom, the leaf in the foreground.
Douglas
I agree with the other comments. Nice compositions overall. Just keep an eye on your histograms. It is really easy to blow reds on a Canon and the whites can be tough as well to prevent clipping. If you have a X-rite color checker passport, that may help as well. I have found that, at times, a proper camera calibration can help with those overblown or oversaturated color channels. Just my cents. Keep shooting - Paul
Thanks Paul ! I do not have color checker so I cannot custom calibrate each color channels. I overexposed the first two images by +1. Is that the reason why the reds are blown ?
The reds will tend to blow first in my experience. The overexposure will tend to clip those first. One thing you can do is display your per channel histogram. That should give you an idea of when the reds will clip. It is easier to bring up the exposure slightly in post than to truly recover clipped highlights.
- Paul