In my opinion, it looks more modern due to the strong contrast. It’s also simplified, which is the trend with new liveries. Take LH as an example: They reduced the number of colors and took dark colors, which make it look more reliable and professional.
Whereas the old blue/green livery just feels like Canada to me. It reminds me of the blue water of British Columbia or the snow around the deep north of Canada. But it has a more home-like feel as well. The new one doesn’t feel nearly as Canadian to me.
I will also say that I may be slightly biased because the old livery is absolutely atrocious for photography. You need an exact specific light and it only really works in hour before golden hour (two hours before sunset). Anytime before that, even in winter it turns into this disgusting blend of blue, green, and white. And it can’t really be shot during golden hour either because teal and orange just do not mix and it looks like vomit. New solves all of those gripes for me.
I would say, they resembled Canada very well and put lots of thought into the colors and arrangement. Its not just another livery. Its a new unique livery, because a livery shouldnt be called bad just because of its white belly. The whole livery needs to be taken into account, and if you do that, you will not find many liveries like the new livery of Air Canada @tunamkol
I am a “designer” myself, and even though I only do it in my free time, I have learned to appreciate even the most simplistic graphics, since there is always a thought behind everything, even behind a single dot. Representing Canada isnt easy, especially on a livery, but if you take everything into consideration, they did a fantastic job. Of course there is the taste, that decides what you like and what not, but imo the designers did a great job and the taste is up to everybody themselves.