I have absolutely no reason to disbelieve that you created all of those sprites by hand (i.e. you built them pixel by pixel without physically taking an existing sprite and editing it). I also cannot deny that you are skilled.
HOWEVER, claiming that each of these sprites is 100% original and that you did not base any of them off of existing sprites is a bold-faced lie. Some of the poses are way to similar (and way too unique to the original) to be simple coincidence, and even though most of them don't resemble existing pokemon in color and overall design, it is more than obvious that that is where their bases were derived from. You can sit there and deny it until you're blue in the face, but the evidence is as clear as day to anyone who cares to look for it.
That being said, I will point out that at least a few of them seem completely unique. You do have talent, that's undeniable. But, you need to be able to face up to the truth instead of making poor attempts at denying it. So what if you derived your inspiration from a different source? It clearly worked out in the end.