I really do think that you should approach artists at the studios you want to apply to for feedback. Besides having clear demarcation between models (game res models and pure sculpts), I don't see anything critically wrong with you work that would affect a job application. The way the market is now, I wouldn't be surprised…
Happy to help! Linkedin is crucial to the hiring process, and many application systems of AAA studios do reference it. You can also search for jobs on linkedin and apply directly through there. There also webinars and news on the platform that you can interact with to increase your visibility. And absolutely add…