hey dude- nice sketchbook! I like all the studies, you should do more of those. push your color pieces with more contrasting colors. keep refining your sketches , bring them to life!
You've got a lot of potential and you are on the right track. you can always work on your art no matter what else you decide to do. but if you want to make a career out of it, make sure your passion is there.
best of luck this year dood!