I have several images I made in Adobe Photoshop from different tutorials. It been a while since I made some new one,but I am considering doing some more.
Very nice. I really like the green and the contrasting red works well here. I like the background to this invasion and the use of abstract shapes (fractals?) against it a lot.
There are a couple of places you might consider tidying up just a bit. There's a place right in the middle, for example, where the straight line shows a paste operation, maybe, hasn't been properly blended in. I do find that a bit distracting which is a shame because this really is very nicely done otherwise.