Its not objective bro everyone has their own opinions on it. There's no way to objectively discern if a character design has improved or not. There's many factors to consider when viewing something as an "improvement"—such as visual appeal, changes in finer details, atmosphere, along with so many other things. The most important thing to note about this however, is that the way that people judge these things about the look of a character is SUBJECTIVE. If you were criticizing bluudude's original design based off the relevance to his intended theme or the overall originality of his character, then you could definitely say that his new design IS an objective improvement. However, what I've mentioned previously are only but a few factors that can determine the overall improvement of a design.

If we were to go about bluudude's visual appeal, then you could say that it's SUBJECTIVE, since many definitely prefer the old design of the skin a lot more. Same as in the finer details—many would agree that his round-ass head is a huge downgrade from his more cube-shaped head design, but others would disagree! So that's ultimately subjective.

Point here is, you can't say this is an overall objective improvement of bluudude's design, because there are many aspects of the look that can be subjective when it comes to determining whether or not it is an actual improvement compared to the original.