Yup, everyone should be able to freely express their opinion here. I think it's a lot more valuable when one tells you what to focus on to push your work further, rather that those "congrats" kind of of Evermotion comments.
Sure, when people like your work, it makes you happy, so it's beneficial for you, but critique is as equally beneficial, because as long as the work is not just your hobby, then you need to focus on creating images that general public likes and finds interesting, not just yourself. Of course not every critique is valid, and there are some people who consistently focus on nitpicking nonsense, but if two or more people at once say something doesn't look right to them, then it usually pays off to focus on that during your next project.
That being said, regarding these images in this thread... While they are probably not the peak of the quality out there, they certainly look very high-end, and i generally like the mood.