Senna's Relic Cannon (Fan Made)

This took a while to do on and off but was a ton of fun and a great learning experience. Unsure if i should animate it but if i decide to ill do it later since im sick of looking at this thing for now. Constructive feedback is welcomed and appreciated since i am not the best at 3D modelling/texturing and would like to improve Made in Maya and textured in Substance for those who want to know