Titled "Gadget [nude]"
From the artist:

Patreon pinup of Gadget!

I normally try not to upload too many alts to avoid spam, but usually if they involve enough differences or a significant change to the artwork or feel, I'll do it. I still try to limit my uploads of alts to 3 max. There's more than 3 for this, but it's in the HD packs and stuff.