Is this DRAWING of the Joker any good? Do you think I have any talent?

it's a very good start. and those would be called oil pastels. they're a fun medium. I'm not sure if you used an image to base your drawing off of, but doing that could help you improve your skills. as an artist, i say you're on the right path. practice and observation are the best things you could do to help improve your growing talent. :)