Not really qualified to crit, but what I have picked up on is that, as in almost all aspects of photography, location and background can make or break a picture. Now with these wee fellas you dont always have a choice. To me the fly in No.1 is good, but the angle of the shot in 2 is better, and the background is a bit blandish in both, reflections good. As always very subjective and someone else will probably have other ideas. Most of my early ones are long gone in the bin but its suprising with persistence how quickly everything improves, look forward to more.
Dave ....