Hon, full body refers to everything. From the tip of the head to the tipy toes. No feet?
I suggest that you try to work on anatomy, its really useful. Like reallly knowww where each muscles and how the bones make up the structure. I've seen too many using references instead of visualising and putting it on paper without referencing. That severely pisses the hell outta me.
The hair looks kinda stiff, try to make it fluffier. Hair has a natural flow, i don't see any flow at all. The head... is kinda too.. uh... big. Try shortening that. The biceps are too long... i see a bloated.. ribcage... And this poor male has no crotch... no ears too... there's no folds on the clothes ... and this realllly looks 2-D. Creating art isn't as simple as it seems. You need to have life in the art, not appealing to your eyes. You see people like paint in odd manners, starring intensively. They are applying life on it, that's why people buy them. And they appreciate their artworks.
Train your eyes, break everything down into simple shapes and sizes. Practice. Can't stress enough on that.
Observe things around you, the rewards are immersive and interesting (that is if you are willing to use your free time to learn, at least have fun(i can't do that ;^; ) and practice practice practice. We all cant litterally teach you to draw. Practice makes perfect.) Practice dear mate.
Good luck on your art journey...
(if you're even going to try...)
(I would like to see your recent works (if you want me to cnc on it... )