All I've done here (Paint 3D within Windows10, to the recolourised version) is
- recrop and realigned to the subject axis
- overtopped the over-exposed/burnt-in dark area at the back of the head with mirror-copied content and tone from the far side of the hair (with some token dither infill and edgeblur)
- applied about 8deg of lateral twistaway, to correct perspective
- resaved the upscaled edit ver as a downpixeled JPEG so that the forum can still locally-host the image
View attachment 34868
This is *not* a spaceman - it is a space occupied by a human endomorph, suggestive of being female body-shape, but not necessarily so. Despite capsleeved teeshirts or hooded sleeveless sweatshirts not usually being worn outside of UK gymnasiums during the era this picture was taken, it reminds me more of that than a sleeveless dress...in this view, anyway
EDIT -I've not attempted to mask the original image placement traces or eg the wrist transition: it's an illustrative edit for arguing a situational circumstance, not a forgery