Hi, this is my process from basic 3D blocking, scupting and finally texturing
Starting in 3ds Max from a basic cylinder

Added a little bit more detail to de model

Stablished some variations

Export to Zbrush, here I split by polygroup

Details using hPolish, trimDynamic and clay brushes as well as some Orb's stylized brushes

Reimported to 3Ds Max to make sure everything is named correctly

forgot to add Vertex paint in Zbrush so I just did it in Max, this is useful later to bake maps

Imported in Substance Painter, tweaking the values for a good bake (need to practice more)

At the beginning I used mostly generators and filters, just as a starting point

Then I handpainted some details until I felt happy with the result

Finally I tried variations of the texture
Final thoughts: I guess if it is just one asset you can get away with the style, but my struggle was it the consistency between the other barrels to make them look as if they belong to the same art style
Also I tried to improve my PBR texturing, but failed with the other maps, specially Roughness map, it's a little bit tricky
Overall I liked a lot this assignment, loking forward to practice more, hope you like it, critics and comments are welcome