Oh, hi hi!
Yes, you're more than welcome to use her! She's a bit old and probably needs an update at this point, but she's still pretty cute. 
Out of curiosity, were...you interested in trying to rig or animate her? Or just using the renders images as graphics?
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That's very cool! Custom VRChat modeling has certainly sparked a lot of 3D art interest lately. So as I recall SpiderGwen just has a flat color texture and simple specular map. I would likely be updating her to a style more consistent with games like Overwatch/Fortnite/Valorant.
Basically giving her the full 'Physically-Based Rendering' (PBR) treatment. So developing a full 3D sculpt (rather than just box-modeling), generating Normals from that sculpt, and giving her Metalness, Roughness, and Ambient Occulsion maps to make her really shine in renders.