Loved the randomness of this write, it tells me that either there are different memories that go through your mind each day or perhaps it could be the reality of where you are living. I love how you compare an artist as in painter to an artist as in writer, I do believe all poets are artists in their own right. We all create what we feel inside our hearts and mind each day. I loved the second stanza the most because we write based on what we see and feel and that is where the randomness comes into this poem. You see what the author sees through their perspective and you have done well with that.
In the second stanza, second line motiv should be motive.
I personally don't think you need the comma in the first stanza because I feel this poem is more free flowing as it is. I also don't think you need a comma in the second stanza either, but of course that is just my opinion and in my head it reads better without.
I do think the comma fits in the third stanza because you want to break up the two sentences as they don't fit well together. But otherwise this is a lovely poem.