the work is not stolen, it is a copy drawing, (trace? how @johnwatson said, i dont know if this word fits it better)
i see that the problem is that i didnt mention the original work and the artist. and of course i edited the post. i never said that it was my own idea. even when @johnwatson ask me but even then i didn't specify the artist. my mistake because i didn't get the idea to say that.
you can see that its a copy drawing if you compare both drawings, my (the copy drawing) and the original - you can see that at the shading. for example, the shading of the fin is in the original bigger and in my copy drawing it is more tuned to the fin.
@johnwatson, i have now edited the other posts too with mentioning the artist.
i have now posted this comment 4 times, i hope you guys will not mark it as spam