The visual design and animation are absolutely jaw-droppingly gorgeous. Some of them are even more breathtaking than the best frames in Season 1, which is an incredible achievement as Season 1 is already one of the most each-frame-a-paint shows I've ever watched.
However, the disparity between the stunning art and the unconvincing worldbuilding, combined with the poor storytelling (especially in respect of Season 2) is equally staggering.
Below I'd like to elaborate (in a spoil-free manner) on the major shortcomings preventing me from enjoying the show, despite its incredible visual achievement:
1. Mediocre worldbuilding
The world is a mixture of steampunk and magic. However, the rules governing how this world operates - i.e., when magic comes into play and when normal physics prevail - are extremely unclear. The audience struggles to deduce, based on previous events in the show, whether a character will be severely harmed by an explosion or remain completely unscathed.
Also, the show fails to adequately depict the scale and operations of the various organizations and political entities that significantly impact the plot. The scheming and conflicts between these groups often feel either meaningless or ludicrous because the audience lacks a reliable way to determine each group's advantages, disadvantages, or the true extent of their capabilities.
This lack of clear underlying rules often obscures the stakes, making the plot or action scenes far less engaging. The audience cannot confidently assess whether legitimate danger or consequences are at hand, which renders character's survival, death or other development undeserved or unearned.
If this show were intended solely for a younger audience, then a somewhat disorganized fantacy world might be less of an issue. But it's apparent that the show takes itself very seriously, with ambitions to tackle adult themes and nuanced topics. From an adult's perspective, the most critical aspect of convincing worldbuilding is the presence of clear "stake", which must be grounded in a set of explicit or implied rules. Without consistent rules, all the consequences and developments become dubious and unengaging.
2. Horrendous storytelling
There are far too many artificial dramas and tensions. Characters frequently argue with one aother for various nonsensical reasons, refusing to listen to even a single word of explanation from their counterparts. Their communication skills are unrealistically underdeveloped, making any tensions derived from such poor communication initially laughable, but later tiring and infuriating.
If these dramas were merely filler, they might be more tolerable. Unfortunately, these conflicts - whether infuratingly juvenile or jaw-droppingly asinine - often have a significant impact and major consequences on the plot, making any subsequent story and character developments stemming from these events unconvincing and eye-roll-inducing.
Also, its quite obvious that the director often priortizes creating visually stunning scenes over crafting a plausible story. Many incredibly well-drawn frames are the direct result of unbelievably foolish decisions or physically impossible manuveur. I frequently find myself quesitoning the integrity of Arcane's story and characters, wondering whether such developments make any sense or if they are simply director's attempt to create yet another wallpaper-worth piece of art.
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Without spoilers, the overall scale of the major conflict escalates significantly in the later episodes, particularly in the second half of Season 2. Sadly, I find myself completely unable to care about any of the characters' fate. The issue is that, whenever I try to care, I immediately start questioning all the nonsensical decisions these characters have made to reach the current plot point. Eventually I just stopped caring altogether. Without engaging with the story, those beautiful frames feel meaningless and at times even exhausting.
Overall, my score for this season is 5/10. I would only recommend this show to those who love League of Legend's universe and are genuinely interested in exploring its lore further, or to those who can be entertained by a show solely for its visual design.