I would just like to point out that tbc started the thread for critiques.

Not everyone is right and some critiques could be against what your ideas are. Take out what you think is good, ignore the bad and learn from others' opinions.

It will only make you a stronger artist

The transparency of the brushes, definitely, but also the blurring of the background seems unnatural to me, and (this could just be my tastes), it BEGS for something big, and focused in the middle.  The trees are pulling my eyes to the center of the canvas; the hawk is too high for that focus to be satisfied.  Perhaps a huge setting sun at the horizon line (of course, then you would have to do more with the sky).

The trees are brushes, but yes I did use the same brush on each side adding more to the left side. I was attempting to create the ground cover with only brushes and texture but I grab from what you are saying that I went too soft with it. I was going for dreamy but I guess the whole image is too soft. Did I interpret correctly?

There's the fundamental issue with 'brushes', as with all image generators.

Traditional 'art' would see a 'brush' as a stick-with-hair-attached - used to apply individual strokes from personal, human input/creativity.  There can be NO repetition of 'pasted' images without deliberate intent.

If you 'paint' each tree as you would in non-digital imagery....by hand....then there's no danger of repetitive images....

'Painting' can be done with a mouse...as unlike 'normal' artforms digital 'art' has the option to zoom in on detail.

It is not uncommon for skinners [in particular] to deal with images at an INDIVIDUAL per-pixel level.

This is what often differentiates skilled creativity from 'filter frenzies'....the latter is typified by what was/is commonly refered to as 'blue swirlies' - one of the no-no's of wallpapering....

I have been trying to rework this image. If it's a waste of time, please let me know or if anyone has some useful advice, it would be welcome.

Actually, at the moment all I have are rendered clouds as I was spending so much time on it, I wanted to know if it had potential before I did anymore. I was thinking to blur the water line and add more clouds. As I said, right now it is just rendered clouds with a gradiant mask. I learned quite a bit about using masks in some tutorials yesterday while my system was down and I was using the "ancient one" which   won't run photoshop so it forced me to stop trying to create and try and learn something!

Grass in the middle is flat...2D....the bit to the right side is better.

The clouds between the viewer and the water look more like smoke.

The 'grass' "brush" is still evident..... identical bits of grass....rather unlikely.

I was trying to keep it stock free if I could. I have done some clouds, now tell me what you all think. Jafo, you are a hard man to please! I will revisit the grass tomorrow. ( and maybe the clouds too!)

Well, thank you for that. It was headed for the recycle bin but perserverence won out.I did add that tiny bit of reflection under the hawk and thought a shadow would be overkill.  Not quite sure how to desaturate part of that layer and not the rest. It's late and I'm tired! I'll leave it go til tomorrow and see if I can change up the grass a bit.

Perspective reads there will be no reflection of the hawk....

I've done a bit more refining and tried to change up the grass. I guess the tuts I read on doing grass were all wrong, Can someone suggest a good site for Photoshop tutorials? I know there are scads of them but which do you think is the best or that you would use?

i would also be adding light to the trees, bird, grass ect from where the light is coming from, this will give it more depth and more oomph.