I admire you're attempt but honestly, you're probably not gonna get the answers you want off of the general populace here.
That being said...
Warning: Large Rant. May offend many people/everybody.
I have an extremely harsh view on art, I'll admit it. I hate "art for art's sake" and generally despise most "modern art." I dislike the general idea that modern art embodies, that art can be anything, and the truth is it can't. There's shitty art but the modern art age seems to have coupled it with it's ok cause it's art. This atmosphere encourages mediocrity in art, where they show artists like Picasso as the pinnacle of artistic achievement even though they only show one or two eras and always skim over the thinking and evolution involved in his work. Without mentioning the years of traditional training Picasso went through, without the years of figure drawing, and skill building and the evolution of stylistic achievements behind his works, they get a skewed view of what art is. They think it's just abstract painting with no thought behind it, they think art can be anything and they accept it because it's easy. Abstract is presented in such a way that all the thinking, and the ideas behind it aren't important anymore, just that it's abstract. Think it's all splashing paint and drawing ill proportioned monstrosities. Now a three year old can roll in paint on a canvas and people will sell it as "art."
This forum especially, many like to say art can be anything, because they're taught that way, they're shown these terrible concepts and shoddy draftsmanship and then are told, it's art, because you can't judge what's not art. I'm all for arts in school, I just disagree with the way it's represented, encourage students from a young age abstract is alright even though the deeper meaning and theories behind it are skimmed over to make it "understandable" for students. I'm not even against abstract art, if the concept and thought behind it is unique or interesting, that's to say, like Mondrian's intricate studies on composition and cityscapes translated into simple colors and shapes, I'm all for it(though I'm still pretty adamant 80% of modern abstract is bullcrap). But this applies to this forum acutely because it's populated by children, and younger age group, they are told that art can be anything. Point in case, they like to say "art is everything." It is not, they like to say it because they're not really artists, because they're looking at it from an outsiders point of view with the shallowest interpretation and thinking, "I can do that." It'll be easy to poop out any steaming pile of crap and then call it "art."
It's wrong, art isn't just what is visually in front of someone, it's the idea behind it. It doesn't even have to be complicated, it could just be, I wanted to study light, or high key concept paintings, but it has to be legitimate in my book. Character design with emphasis of form is just as legitimate as concept art for video games. It's not just drawing something, it's figuring out the mechanics of good design and aesthetics. I hate most of all people with no skill or goal who try to legitimize their own work by making excuses, "It's art." "It's my style." " I'm expressing myself." Any scribble can be defended with "It's art."
Ugh, sorry about the rant, I just have to deal with... a lot of people who are like, directly against my way of thinking. (I tutor people at my school... I build up an amazing amount of hatred in very little time.) Rant aside, really I'll know within one painting or drawing if the artist is good. Like my teacher always says, there's 10% good art, and there's !0% bad art, and then there's everything else that's pretending to be art. Plus I'm pretty shallow when it comes to art, I have a few exceptions.