Welcome back Skida!
This photo would probably serve better to show what makes a photo work rather than what doesn't. Sometimes people take the critique thing too negatively, in reality (IMO) it should be at least as much about what works than what doesn't.
I think the frame with the hub at the lower-left 1/3rd makes a good anchor for the image. The spokes create a multitude of leading lines that direct the attention to the outer rim which then recycles the viewers attention back through the remaining spokes. It's a pretty simple image with basic shapes and few colors. The simplicity is a large part of the beauty because it allows the structure of the image to dominate without being lost in too much detail or color. The two colors (ignoring the neutrals) work very well together, the contrast they provide strengthens the structure of the composition as well as provide some "eye candy" that grabs the eye.
I'm not sure if my few suggestions would help or hurt, I only offer them because they stand out as question marks in my mind.
The axle is a little closer to the center than I would think optimum but moving it towards the left would also reduce the downward curvature of the outer rim which I like. The rim at the very top is awfully close and I can't help but wonder if a little more breathing room might enhance the image. The upper-leftmost spoke terminates oddly at the edge of the frame as does the one at lower right, I'm left wondering if either showing the entire base of the spoke (where it attaches to the rim), or cutting it off entirely, might help or hurt the image, I really can't say unless I saw it.
At first I saw the frame being nonparallel to the bottom was a negative but upon further thought I think it adds dynamism to the image and causes my eye to initially go from the axle towards the upper right. I wonder how others might feel about it.