I think that's Kaga's archery pose she's copying...

From the title, she's parodying Rambo

Japanese title
- Rambo: First Blood ==> ランボー (Rambo)
- Rambo: First Blood part 2 ==> ランボー: 怒りの脱出 (Rambo: Wrathful Escape)
- Rambo 3 ==> ランボー3: 怒りのアフガン (Rambo 3: Wrathful Afganistan)
- Rambo 4 ==> ランボー: 最後の戦場 (Rambo: The Last Battlefield)

Seika said:

From the title, she's parodying Rambo

Japanese title
- Rambo: First Blood ==> ランボー (Rambo)
- Rambo: First Blood part 2 ==> ランボー: 怒りの脱出 (Rambo: Wrathful Escape)
- Rambo 3 ==> ランボー3: 怒りのアフガン (Rambo 3: Wrathful Afganistan)
- Rambo 4 ==> ランボー: 最後の戦場 (Rambo: The Last Battlefield)

Thanks for the indication, that help me to translate the other title but I'm not sure about the fourth one.
It's says apparently "The Last Good" (Saigo no Kou). Does that really mean something?

Isn't that 「最後の奴」 ?

Seika said:

Isn't that 「最後の奴」 ?

Ah, maybe yeah, it makes more sense than what I thought at first.
Gosh, I misread because of the last kanji and I thought it was "好", but even I thought it didn't look like exactly like this and it means nothing.