Some additional options you may want to consider.
Some music for the main menu. There is a lot of free music online but just to show the difference Beyond by Whitesand
Added your into to the About page with a link back to itch.io.
Options to remove the textbox and quick menu.
https://mega.nz/file/WLYm3DbL#ccVQ6rRcrh-fSGkF6LoLxihjbHmZfTQhQC1di7vfdLg
You can review what I changed with https://winmerge.org/