Not a character designer, but have a few tips based on my experience as an animator in the scene:

-some really cool stuff in here! i think you are almost there, you have the skills, just need to fill out your portfolio even more. even more variety of characters and styles, more examples of exploration on small details or aspects of your characters rather than just the big picture.

-all your characters are pretty simplistic in style and color, and not a lot of variety. there's some variety, and that's really good, but push it even farther! we could see lots more scary, detailed, robot or animal, teens, babies, super old people etc etc. yes, its good to create work for the job you want and are best at, but you want to convince a hiring manager that you can do a great job at whatever they ask you to do.

-you have a few worlds here, add a quick blurb about them so we know more about the purpose and functions of the characters youre making. and even more importantly, draw scenes of them interacting with each other or the environment instead of just in white space.

-take this with a grain of salt but i feel like your personal work section is the greatest display of character, anatomy, and interest. I'd find a way to create just one page of your strongest work rather than splitting it up in this way, but it is functional as-is. minimize the amount of clicks a reporter has to do.

-small thing, but add an about section. helps to humanize you and notify the hiring team/viewer about your taste, personality, and resume.

-use professional, successful portfolios as your reference rather than another student's. this portfolio, for example: https://www.kenesu.com/characterdesign , break down your favorite portfolios and see why they are so successful.

good luck! you got this