Unfortunately I agree with Phil. Most of the shots fall short in one technical aspect or another, from lack of depth of field on some of the bug shots (you need to stop down to about f/8 or f/11), to the underexposed egret, to the nowhere-near-level horizons on the fourth shot and the third from last.
Some of the shots, which look at first glance as though they were taken with a long lens, are actually excessively cropped standard lens shots. Well done for trying, but you'll never get away with that, it is simply not possible to achieve the quality.
I'd agree with Phil on another thing though - some of them do show promise, so keep working at it! When you can look back at these and see the problems for yourself, you'll know you're getting there!
I don't want to sound mean, just giving an honest appraisal.