Well i think he is such an importance becauae he invented the collage and to this day that is a huge thing in art. my favorite thing he did was child with a dove and it was created in 1901. it tells a story and it relates to me in my life because i was always alone and i always found comfort in my dog because he always made me feel better when stuff was happening.
I do believe that the hardest part of an art critique is all based on opinion. Some have trouble with finding flaws, some with finding the good things. It all depends on you. Are you giving the critique or getting it?
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i answered it in your other question go check it out