Lets take a look at how the gang aged between part 2 and Gaiden:
Kakashi
Yamato
Iruka
Keep in mind that all three of these characters were in their mid to late 20's in part 2 and Gaiden is no more than 10-12 years later. Does Gaiden Iruka really look to be in his late 30's? Heck no, he looks mid 50's at best.
Now lets look at 3 older characters:
Hiruzen
This is during the Kyuubi attack, so its part one minus 16 years. He was about 68 in part 1, meaning he's about 52 here.
Clearly he looks either younger or equal in age to Epilogue Iruka, who is about 15 years younger. Tell me with a straight face this makes sense.
Jiraiya
he is the same age as Hiruzen during the Kyuubi attack, yet looks much younger than him.
Tsunade
Leaving the best for last, clearly I'm not going to talk about Oro. Tsunade being the same age as Jiraiya should look to be aged the same yes? Kishi says no.
This is how her skin looks without her seal active..... and she's the same age as Jiraiya.
There is no consistency going on here at all. Every character under 30 seems to have aged 30 years between the span of part 2 and Gaiden. Everyone 50+ before Gaiden look to have aged much slower when compared to them. Tsunade breaks this trend, looking decades older than Jiraiya who is her same age. Its downright odd on Kishi's part, you'd think he'd keep it more in line.
Kakashi
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Yamato
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Iruka
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Keep in mind that all three of these characters were in their mid to late 20's in part 2 and Gaiden is no more than 10-12 years later. Does Gaiden Iruka really look to be in his late 30's? Heck no, he looks mid 50's at best.
Now lets look at 3 older characters:
Hiruzen
This is during the Kyuubi attack, so its part one minus 16 years. He was about 68 in part 1, meaning he's about 52 here.
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Clearly he looks either younger or equal in age to Epilogue Iruka, who is about 15 years younger. Tell me with a straight face this makes sense.
Jiraiya
he is the same age as Hiruzen during the Kyuubi attack, yet looks much younger than him.
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Tsunade
Leaving the best for last, clearly I'm not going to talk about Oro. Tsunade being the same age as Jiraiya should look to be aged the same yes? Kishi says no.
You must be registered for see images
This is how her skin looks without her seal active..... and she's the same age as Jiraiya.
There is no consistency going on here at all. Every character under 30 seems to have aged 30 years between the span of part 2 and Gaiden. Everyone 50+ before Gaiden look to have aged much slower when compared to them. Tsunade breaks this trend, looking decades older than Jiraiya who is her same age. Its downright odd on Kishi's part, you'd think he'd keep it more in line.