It's not just that, and I agree that his coloring has improved. I think his style has changed, but not necessarily improved - it's a lot more simplistic than his old works. I understand that people have lives outside of this, and the argument wasn't whether or not his work is good, it was whether or not it's worth $60/year. I think the answer for me personally will be "no".
I think the biggest mistake (or genius) was saturating the first month with posts. The rewards for the only reward tier says pretty clearly "one image/series per month" and I think I got bait-and-switched by the first month.
Again, I don't think his work is BAD, I just think it's different, and not in a way that I personally like. I wish he would do more stuff like attached.