I was actually planning on making a thread on this myself- thanks for doing the honours yourself! I think it’s superbly directed and acted, and features a great deal more genuine pathos than most NuWho stories, although I’m unsure as to what I think about the ending. Though it has more to it in terms of subtext than most “emotional” endings to NuWho, the editing in conjunction with the musical track reminds me of a glorified music video, which comes across as a little immature and doesn’t necessarily gel too well with the depressed and tortured artist of Van Gough (though I appreciate the sentiments the episode provided). I don’t think the monster was particularly well realised either in reference to the overall story, mind, and could have been a little less obvious in its design inspiration (that of a bloody chicken).
In reference to the ending, I see why it divides Classic fandom, and I’ll be re-watching it again soon as to affirm my refreshed thoughts, although as of now, I’d say it’s pretty good.