quality issues

These are the three issues, that I have found after a quick look into this:

• You should group your data correctly. It's a mess for any buyer who wants to use the asset.
• You should get rid of the open paths.
• You should clip your asset so that there is no white border and your picture fills the complete artboard.

Adobe Stock often rejects vectors that are too complex, overly detailed, or contain unnecessary hidden elements or excessive anchor points. To improve the quality of your design, focus on using clean, clear paths while minimizing the use of complex gradients and excessive anchor points. Simplify the design without compromising its overall impact. Tools like Pathfinder and Join Tool in Illustrator can help you combine and clean up paths, making the file more efficient