That’s not a license, and “free for commercial use” is pretty open ended. Settling on a concrete, existing license would allow people to know the limits of how they can use it.
"License: CC-NR (Attribution Optional) — Custom
This work is licensed under a custom license inspired by Creative
Commons.
You are free to: - Use — in personal and commercial projects - Modify —
edit, adapt, and build upon the assets
Under the following terms: - No Redistribution (NR) — You may NOT sell,
share, sublicense, or distribute the assets as standalone files, whether
original or modified - No Asset Packs — You may NOT include the assets
in any asset pack, library, or collection intended for redistribution or
resale - No Extraction — You may not use the assets in a way that allows
others to extract and reuse them as standalone assets
Attribution: - Not required, but appreciated"
Better? :)