To get the best results you will often need to do some more processing of the image produced by the HDR software. What HDR software are you using? They each work a little differently. What other photo processing software do you have besides your HDR software?

Most of the time I use Photomatix Pro to combine the images. But I usually stop after I get the intermediate 32 bit image. I save that as a TIF and then open it in Photoshop CC for more tweaking. Sometimes I will then process them even further using Topaz or Nik plugins. I have occasionally even used NIK HDR Pro on the single image.

One other thing. Always work with original RAW images if you have them. As you process them always save your results as Tif, PSD, or some other file format the preserves all the data. Only save them as a JPEG after you have done all your processing. The JPEG format compresses the image and in the process throws away as much as half the data in the file.

Hi mariposa!

#1 appears to be out of focus. If you were using macro feature, or just zooming in, it can be difficult to maintain focus, especially while likely bending over :) Re the composition, I might leave a little room at each end of the leaf.

#2 very nice color. Again, I might leave a little room (stem is cut off) and/or move to a less-busy background.

#3 this is a pleasing image to me - interesting perspective (looking up), and nice contrast between the red fruit and the yellow leaves. I also like that virtually the entire image is filled with the yellow leaves and there's nothing to distract, such as a different species of tree.

#4 this one is a little busy and I can't find anything of interest to rest my eye on. Maybe a close-up shot of fewer leaves?

#5 not sure of your subject. Were you drawn to the colors of the leaves, shape of nearest tree? Leaves on the ground? Maybe experiment by taking some shots from closer up or singling out one aspect of the scene that was particularly interesting to you. This one is a bit difficult since most everything is in shadow.

#6 I love your out-of-focus background with the well-distributed points of light. I like that you showed a bit of stem in with the leaf close-up. Only thing I'd suggest, especially for a centered subject, is to shoot vertically instead on horizontally.

All the best, hope you are enjoying this wonderful hobby!