I agree, the imagery was great! You took the reader to different places, that was nicely done. I do see a conflicting aspect in the rhythm, right at the last stanza, and it made me somewhat lose the feeling you built so strongly with mere construction. It's a simple matter of making the first line in that stanza longer than the last, just like all of them. All in all, still a 5/5 b/c I definitely felt your emotion!
To be honest, I can really understand your point of view. One of my good friends from high school committed suicide 5 months ago yesterday. It's a tragic thing. You're poem isn't alluring but the simplicity draws the line of connection between life and death.
Recall and memories of sorrow are so full of tears yet life goes on. I have read so many poems with woe and sadness since I joined this site and this was a good effort but it has not got the bite and anguish needed to make it stand above many that have my excellent. 4/5 a good poem Ray S