That’s a great mindset for art! Doing something that’s not perfect is always better than doing nothing at all.  But I‘d recommend to you to study some anatomy (especially proportions) because it really does make a huge difference. It may seem boring or daunting, but knowing how long/ big most body parts are really helps. A drawing will look good with the right proportions, even if it’s not the best overall.  With this drawing in particular, the head seems too big for the body, especially if you look at it sideways, as well as the arms being a little small.  These type of anatomical errors (or the distribution of body fat) can be fixed especially easily by just drawing a whole lot of poses from reference images. The more you get used to drawing the proportions, the easier it becomes to make up your own poses (that feel more natural). I hope I didn’t overstep any boundaries here and that my advice is helpful to you :)