#1: Looks like only the leading edge of the petals are in focus, if that, and the composition is rather dull and comprises of far too much grey. The pink to the bottom left is brighter than your subject matter, drawing the eye away from the two flowers, and the green stem in the middle needs some clarity to be a valid part of the picture.
You'd be better off concentrating on a single bloom and removing as much of the distracting elements from the frame as possible. Your whopping great signature/watermark isn't helping things either.
#2: This isn't doing anything for me. Too much going on in the corners of the frame for my attention to be drawn to the waterfall and the tree is quite distracting - I can't help but feel I want to peek around it and get the full view of the falls.
#3: Much better. Best of the lot. I'm instantly transported to New Zealand (no idea why, just feels right) and I'm happy to be in a lovely tranquil spot like that. If I was being picky I'd say the image was overall a little flat, but you've captured the water just right and I'm quite taken with this shot. But get rid of that damn signature/logo/watermark please!
#4: On my monitor the waterfall is just one solid block of white; there's no detail and no texture there. Again I feel there's too much going on around the edges of the frame (sig in top left; fern in top right, OOF water in bottom right; tinge of colour in bottom left) and I'm trying to figure out what's the actual focal point of this shot. There's too much emphasis placed on the mossy rocks and not enough depth to the shot for me.
You've got some lovely trails flying off the bottom of the waterfall where it's hitting the water - more attention needs to be drawn to them.
#5: Not enough flower and not sharp enough. Get closer! The background is far too distracting and you'd probably be better off chopping the top 40% off the image and concentrating on the intricate detail of the flower. if it were me I'd have either picked the dead leaf/flower off or tucked it out of the way so as to not to spoil the composition.
