OP never ask anyone if you are a good artist. If you want to be an artist, be an artist. There is no such thing as good or bad artist.
There is good art and bad art, but this is subjective and defined by the viewer. Some will say your art is good and some will say it is bad. You should do what you feel is good, and work to be better and better according to your own perspective. That is what makes a good artist. Nobody's opinon of you or your work will ever mean you are a good artist so no sense asking.
Exactly! If you ask me if you're a good artist I will always tell you that your work sucks. I look at cubist art like Pablo Picasso, Jean Metzinger or Albert Gleizes and wonder how people could place their head so firmly up their ass but I love Salvador Dali. O_o
Of course art is subjective, but I think the value is in a similar situation to Bitcoin and everything else ie something is only worth what somebody is willing to pay for it.
I personally believe Jackson Pollock's No. 5, 1948 is absolute shite (along with everything else he did), and not worth 140 million dollars, but some people obviously do: