You have captured the neon in a great position, pity about it not being fully in focus. You have done great with the lens for that shrimp shot. and the last picture is a cool photo has no real focus point.
Here are a few more from my Amazon Trip:
"Common sense in an uncommon degree is what the world calls wisdom"
-Samuel Taylor Coleridge
Great shots!!! My only suggestion would be to crop out the leaf with the gauge in it in your butterfly pic and position the butterfly in the lower right hand corner. IMO, your focal point is too dead center on that one and the pic would look much better using the rules of thirds.
Just playing again. Nikon D5000, 85mm micro lens, auto macro setting, and on camera flash.
its a successful shot for landscape, i like the blue of the water
OK, I'll play.<g> Good attempt at slowing down the speed to catch "creamy" water over the little fall. But the whole scene is a bit chaotic. Try to isolate the little stream better from another angle. You might also want to try to move the big stick.