Its should be evaluated based on its complexity, overall design, and technique used to create the piece.
Based on technical skill, creativity, and how well they express the theme of the piece.
This is hard one.
I would think by what it makes you feel. I've been told often that my artwork makes people FEEL joy. That, to me, is very rewarding!
content, media, thought process, attempt, originality...the list continues!
There are three main objective criteria that I personally would use to try and evaluate a work of art:
-- Does the artist succeed in conveying what they were trying to convey? (If the message that comes across isn't what s/he intended, then the work has failed up to a point, even if it is a good work in other respects.)
-- Assuming it has been conveyed as intended, was their idea a good one? (If they succeeded in getting across a message, but the 'message' consists of something very unoriginal, I would tend to 'take marks off', so to speak.)
-- What technical skills were used to produce the work?
Most works of art will not really have all three of those points 'up to scratch'. For example someone might paint a really *amazing* picture of a bowl of fruit, but if the treatment of the mundane subject matter is unoriginal it is no better than a *good* painting. The artist would have to really try hard to 'say something' with her/his bowl of fruit to raise it to the level of a *great* painting.
Five senses and the mind to travel to see
Should be evaluated by creating and / or technique.
how does it make you feel?
as always has been evaluated:
through professional experts
and the best of all: history balance
in relation to what the artist wants to portray.
A work of art should be evaluated by its ability to inspire emotional responses in my opinion.
If the work of art gives people joy and provokes thoughts or ideas, then it is worthwhile.
Do you like it? Does it speak to you?
That's not an easy question. There are two types of art. The art that people buy, and the art you create for yourself. Both have different parameters and rating systems.