I think that youre doing everything right in terms of trying new styles and experimenting! The only way you learn is to draw more and more and go outside your comfort zone. It does feel like youre still trying to find your style , which is good. I feel that the picture itself is a little stiff, one thing to help that is to study body movement and sketch more. I notice you dont do a lot of sketches but thats an easy fix. Sketching helps loosen up and find movement. But good job over all! Youre still leatning and youre doing a great job! Youre on your way to be really good. Just keep drawing and practising.