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            01
Piccolo and Goku (Dragon Ball)
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            02
Frieza and Goku (Dragon Ball)
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            03
Goku and Vegeta (Dragon Ball)
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            04
Goku and Super Buu (Dragon Ball)
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            05
Yuuji and Nobara (Jujutsu Kaisen)
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            06
Boros and Saitama (One Punch Man)
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            07
Luffy (One Piece)
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            08
Tengen (Demon Slayer)
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            09
Eren and the Colossal Titan (Attack on Titan)
Other than Erin's outfit, this totally looks like it belongs in a museum. It is reminiscent of Utagawa Kuniyoshi's famous woodblock triptych, Takiyasha the Witch and the Skeleton Spectre, which features a giant, imposing skeleton.
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            10
Goku and Broly (Dragon Ball)
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            11
Megumi (Jujutsu Kaisen)
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            12
Trafalgar D. Water Law and Other Pirates (One Piece)
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            13
Naruto, Luffy (One Piece), and Goku (Dragon Ball)
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            14
Buggy, Shanks, Blackbeard, and Luffy (One Piece)
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            15
Master Roshi (Dragon Ball)
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            16
Beerus (Dragon Ball)
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            17
Ichigo (Bleach)
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            18
Toji (Jujutsu Kaisen)
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            19
Saitama (One Punch Man)
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            20
Vegeta (Dragon Ball)
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            21
Gojo (Jujutsu Kaisen)
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            22
Monkey D. Garp (One Piece)
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            23
Frieza (Dragon Ball)
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            24
Cell (Dragon Ball Z)
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            25
Inosuke, Tanjiro, Zenitsu, and Tamayo (Demon Slayer)
Demon Slayer canonically takes place in the 1900s, a bit after the popularity of ukiyo-e, though, the characters would probably be familiar with the iconic style.