The thing is, these are not just random images slapped onto a canvas, or even the product of a drug trip, but each part of this painting is symbolic of something to the artist (and, in much of Kahlo’s work, its some kind of pain). People going through similar things in their life might be able to pick out the symbolism in each part of the painting, connecting with it in a way you can’t. Not every art piece is about technical skill or realism (which is something you seem to value highly in the art you enjoy).