I had one at one point in time. I will have to digg around and find it again and post how I do it. It takes some time. I started out with Photoshop 5 when it was first released. Just practice is most of it. Keep at it though.
Its not bad at all. I see you posted an avatar in your gallery too. They are good things to start with. I am still digging through stuff here finding a tutorial. I have only posted a fraction here of what I have done. I think I am about up to 150 or so images now. And believe me the first ones are not so good. Course that was use with Photoshop 5.5 when it existed. But still wasn't too pretty. Just practice, practice. First thing I usually do is look around for my model. And what I am going to do with her character wise. Second I get together references for that character of what I do like, a bunch of these. I will usually try to mix the content up when I create the outfit. And make it my own.
I can try at one point. I will have to see if I saved the original .PSD file out. Usually they are quite large in size. And once they reach the 2 gig or so mark I don't keep them forever. I think I still have this one though. And I probably would do it in PDF format or so.