Finding your art style?

So these four are all pieces I’ve done on procreate, all different styles. The deer one is my most recent piece and I’m really wanting to create more original pieces like it (I’d love to do some art markets and sell prints at some point of my original art)

I do absolutely love doing realism like the Michael Jordan one, and portraits too. But I feel like I’m not really developing my own style if I stick with realism.

Is there a particular style out of these four I can get advice on which I should push more for original pieces?

I’m honestly struggling to develop my own original art and ideas. I sit down to draw something but my mind just goes blank. How do you develop your own art style without overthinking it?

Thanks in advance for any help you can give me.