Welcome 🙂
You can post your work in the gallery , and a lot of people also create a sketchbook for 2d work (or a Polybook for 3D work) so that they can post their WiP work and finished pieces here on the forum to show the community for help and critique.
My polybook is here if you want to have a quick look to see what it is all about : https://blog.cgcookie.com/forums/topic/ao-shifted-shadow/
I would suggest doing both as you will get more feedback here on the forum , but it is also nice to display your finished work in the gallery for everyone to see , and sometimes your work may get selected by the CGC staff to be featured in the staff pick gallery which gives you a great feeling if it happens.
Best of luck with your learning and welcome to the community.
