Are these aircraft in TWoS mod? Because I dont see them in the museum. Or is there a separate mod to download?

Ah, this was one of my first attempts at creating mod for SH5. Unfortunately, I didn't know a bunch of stuff back then: one of them was the bug that prevents LOD models (low quality models used at longer ranges) from using any skin other than default one. This means all these skins would only be visible at close range and revert to original ones from afar.

As a result this project never got finished, though I still have those skins stashed somewhere. Good news is I used experience from this to create another plane mod for SH5, which is available and compatible with TWoS.