Well it's the same old story isn't it? The people that are good sketch artists and know their anatomy inside and out often get waaaay confused when they start trying to learn the nuts and bolts of the commands and buttons and sliders and options of 3d application work.
On the other hand the people that take to 3d application work like ducks to water often are at sea when it comes to understanding the in-s and out-s and rules of human anatomy.
I'm a pretty good sketch artist Roxas, with a pencil OR a 2d program like the GIMP but it's taking me FOREVER to get comfortable using Blender3d to produce models because there's so damn much to learn and I never wanted to be a technician anyway.
On the other hand you seem to have learned the technical aspects of 3d work just fine. Here's the kicker though, it looks like you need to start studying anatomy and maybe take up the high fine art of pencil sketching to some extent.
NO, all those issues WILL NOT be fixed with textures; although the model will look a bit better. If you want to turn out good looking models then you need to learn how the human body is put together. This applies to cartoon characters as well. They ALL derive from a sound knowledge of how the bones and musculature and tendons and ligaments work together AND the nearer you can come to producing the same with a pencil or a 2d application the better your 3d modeling work will look.
There are some incredible 3d artists on this forum and their models LOOK as if they can walk out of the monitor screen and begin a life in our world because their anatomy is completely correct for their sort of creature or person.
You can take a month or two off now and invest in anatomical studies and fundamental sketching work or do it the HARD WAY and gradually pick it up -- and all the frustration that goes with learning it the hard way -- a little at a time as your models keep falling flat.
The people offering you replies in this thread have been kind. So am I. Learn anatomy and, probably, learn how to sketch.
Eternal student in search of knowledge. But will settle for the occasional epiphany.