Yes, practice the human anatomy. When making people (or pretty much anything organic) it helps to make things out of shapes. Like I use ovals when I draw people. I wish I had a link to explain what I'm talking about better, but I know that other people understand what I mean.

Once you draw the shapes to make an outline, you add on details, like clothing and what-not. That's what I do. Just add little details as you go along. Then, I erase the 'framework' and add the final adjustments.

Well, that's a little too detailed, but yeah. Keep practicing!

Draw Yuna next.

Edit: Yes, don't avoid hands. You can't get better without practice. Use your own hand as a reference sometimes.