by it's creation process: is it long and have deep roots? does it touch and stimulates something inside the viewer? Is it attractive? Does it have a story behind?What story?
By it's Impression!...In society - by the people who see it.
The artist...by their own heart.
by the gut - do you like it or not? This response needs reflecting of course.
In this process, you can train your gut like a dog, it can tell you what is healthy and what is not, what is real and what isn't. It has to learn though, to not be afraid, and to research dislikes as well as likes.
I don't like art that is agressive, negative, empty, dead. But in terms of quality, such work can still be good.
Since I am a muralist, my work is evaluated by my client's expression on their face and their comments I hear, and the wows they hear from people who see it.
In my line of work, by the person that is wearing it.
By the required skill or knowledge it takes to create the work of art and by its appeal to the human eye.
Carefully but honestly.
Look at it. You either like it or you don't. It's not that complicated.
it shouldnt. To each their own. There will always be someone who loves a specific work of art, and another who will hate it. As long as you like it, be happy.
Each person is going to have their own thoughts and opinions as to art work. I feel the only real evaluation would be what a piece or image says to the viewer and how it makes them feel. Is it a happy image, inspiring, funny, etc. This can say alot about a persons art work and personality.
I think an art work should be evaluated on how it holds a person's interest, how original it is, and how soothing or disruptive it is to a peron's sensibilities. An interesting work is like a puzzle, and time must be spent on the work to solve it and appreciate it.
That is between each person and the work in question. What may prove profoundly moving to one person may be nothing much to another and this has very little, if anything, to do with the actual piece of art in question, and everything to do with the people observing the art.
Simple - Do you like it? Great! I don't think anything needs to be evaluated to death to make it great.
I can only tell you how I evaluate a work of art. I look for its originality, its technical mastery, its presentation, its emotional impact, and its honesty.