some thing's . you need to use more contrast in your pictures or your picture will look bland. also when you pick colors dont just use a lighter color of the blue / green / red what ever you used. try adding other colors to it as well. a good tip is that you make the pice in black and white first then add the colors. you will better understand contrast if you do it like that. here is 2 examples . left one is your right one i just added a bit more contrast to it 
here is an other example 
. what you must think about as well is to add a light source and not pillow shade. right now the pice have no set light source and has shadows / lights all over the place.
I was not trying to pillow shade, i'm just really bad at shading, cause i never know where to put them, so it doesn't look flat. 
Any tips on that, before i start fixing the paladin?
Shading isn't a mythical technique!
Relax.
I think you should look at still life, simple forms (Cubes, cylinders, spheres) and see how light from different angles scatters and diffuses on them. Analyze, observe! SEE! THINK! How the light falls on them, how it bounces, how the angle affects the specular highlights, how the shadow falls, you know the drill now!
(Google Sketchup is a cool fun little software where you can just make random stuff and see how light falls on them, same with Blender, or hey, just use google images!)
Then you can then apply those observations to anything. Yes, ANYTHING. All objects and be broken down to simple forms, and you can work out how light will look on them from different angles.
It's just about sitting down, analyzing, practicing!
Good luck
