(Critic Welcome) ConceptArt Portfolio

niko342112

Hi everyone, I'm a 2d artist, I'm having trouble finding a job, I'd like to ask for critique from more experienced artists. What do I need to change and improve to find a job as a 2d artist. 

My portfolio is below: https://drive.google.com/file/d/1O5AL1BvyO48mYdflQpPPeg1kia6SmU98/view?usp=sharing