You are free to use this model in any way.
Model made in Zbrush, mainly using the Zmodeler tool. Textured in Substance Painter and uploaded directly to Sketchfab. I am fairly new to Substance Painter and so built up my materials layer by layer to help learn about masking, effect generators and blending. Stylised Station YouTube videos are a great help in this respect. I created custom alphas in Zbrush using 'alpha from mesh' and used these in Substance Painter.
Let me know if you have any ideas for other models I could work on to practice my Substance Painter technique.