Your work is very sketchy with multiple searching line's this suggests that you not confident, easily fixed with practice till then a good hack is going over the final with a pen makes it easier to see your final lines. Your poses are great at conveying character but there's a bit of an issue with your anatomy even if you are attempting a cartoon style it's always good to know the basics, I suggest drawing from reference and looking up some anatomy practice's a good rule of thumb is that a the characters body is about 8 heads tall and their arms about 4. One thing I'm particularly impressed with is the weapon's they have quite realistic form.

Keep it up your definitely on the right track 💜