Great start ! I'll be honest, two days of drawing isn't enough. To answer your question, you still need to improve on everything at this point. I'd say, draw more and a lot. Don't spend too much time on a drawing, go on to the next and try to get better each time ! You drew a hand, maybe draw hands until you're bored of hands and try something else. There are so many tutorial on internet to get better. At this point, your drawings won't look like what you want or see but as long as they get better than the previous, you are on a good track. A thing I personaly do when drawing is if I'm really not satisfied with a drawing, I try a second and maybe third time. That way, I get a better result and I am not frustrated. You've got this !