My son got a set of Avengers figurines for Christmas, but it didn't include Black Widow!
I used this game model for a basis and got to work making it printable: https://www.deviantart.com/xelandis/art/Black-Widow-Marvel-Heroes-XNALara-683904937
The STL version has a lot of surface detail as I wanted to get the texture on her jumpsuit. It was probably wasted at this scale but you can see the little seams on the front of her suit came out quite well.
The OBJ + MTL version is textured but lower-poly.
I've added a lower-poly STL that should still come out quite detailed at the default size.
The base was a Patreon reward from the very talented Duncan Louca: https://www.patreon.com/Duncan_shadow/
I printed her upside-down to minimise supports on the arms and legs.
I would have liked to go bigger for this one but the other figures in the set were around 80mm tall so that's what I set her to.
Painted with Citadel mini paints.
For the jumpsuit I painted the whole thing black then dry-brushed with silver.
I couldn't get the detail I'd have liked on her face and the eyes are pretty dire, but it's not too noticeable when she's standing on the table.