Before we proceed we're interested to know what you feel your strengths and interests are and the kinds of things you like to make.
Most of my experience lies in creating props and filling a games asset library. I don't have too much experience creating original materials (e.g. substance source materials), however, I'm very efficient in baking/drawing normals and texturing individual assets.
I'd say I mostly specialize in hard surface modeling, creating props and environmental assets. While my experience largely lies with Unity and unreal, I've been trying to learn technical art skills, optimizing poly counts, shader complexities, and real-time rendering techniques.
In terms of contributing, I feel like I would work best acting as a sort of team contractor (i.e. working through an asset list), I'm working creatively on another project, hence I feel I can guarantee more work if I have a list to burn through. I'd love to discuss further on how I could contribute, I'm only concerned about engine implementation and the art workflow as I've never developed for Source, hence hopefully I could consult the team on this.
here's a link to my website, sorry I forgot to post it:
https://www.maitchison.com/ Let me know if you need further info! Sorry for the late reply, I'll try and keep a closer eye on the forums.