Hey ZeggyGames! I'm not sure if you saw this but I just came across this page that's using basically the same thing you did here.
Link to the page: https://insanozuke123.itch.io/soldierplayercharacter
I know in your licensing, it's fine to do this. Although, it also says to have the licensing on there and that it has been altered but this person doesn't have any of that. This person also mentioned (in a comment) that they only used references although it looks just like yours so..yeah lol
I just wanted to put it on your radar!