First off I can understand you're upset if that is your art. And therefore that tone. But insulting people isn't a great way to start in a Forum like this. SaD(mr 1400 posts) is the owner of SkinCity and he has been in these Forums for about 2-3 years.
Second I really think those are great concept drawings, but I actually doubt it's really yours(with the present background). If you look closer, that one post makes you seem less trustworthy. I'm sorry to say but this is the internet and people do such things. Look at it from our perspective.
Third is you don't have a website to backup your story. If you're making so much money, on a professional basis, people tend to have websites(I know you state to be making one, and I'm not saying that's not true). Atleast in my little world.
I'm not saying you're a bad person or that's not your art, but try to look at it from our perspective.
When all that is said. I like those concept arts but if it should be real detailed, like the concepts, it should be made for the Unreal Engine 3.