What is your intention with this painting? Or else what is the focal point? Great composition! Ribs are too detailed bringing attention to the area

Reworked after taking some of @Martha Muniz suggestions. Also reworked some of the fingers on both hands as they looked a little wonky . Of course still happy to get any critiques/suggestions :)

It's a cool composition! I like the idea you have using the hat's holes to bring in rays of light as an effect framing his face. I think for the blade to pop more, I would scale up the hand + blade together and move it towards the right, where more of the blade can be seen. This will push the foreshortening and set it further apart from the rest of the image. I would also suggest adding light bouncing off the edge of the blade, which you can do just with a soft large airbrush lightly over the edge with white. As for rendering, what I would suggest is to work large rather than small. What I mean is that, instead of zooming closely into the canvas and focusing on small details, try to remain in full view of the image, where you can make larger decisions over the entire canvas. This helps you find a solid structure for all the elements in your picture first. I would especially recommend to start by grouping your areas of shadow and light, as this will be key to clarity and composition as you continue to render. You'll find often that details will need to remain simplified due to light and shadow, otherwise it may break the illusion of the 3D setting or overwhelm the composition. So even after you start adding details, continuously returning to check the picture as a whole will help keep you on track. If there are any artists/specific styles you are seeking to learn from/emulate, feel free to share, too. It always helps to get an idea of what your goals are as an artist :)