I would recommend having an image showing the Pawn move, which would help explain the difference compared to standard Chess.
Also, if the left horizontal double step is allowed, then it may be wise to adopt the rule from Glinski's hexagonal chess, which allows Pawns that end up on the starting square of another Pawn to make a double step from that square, so you don't have to keep track of which Pawn started where.
This is almost good enough to be approved.
I would recommend having an image showing the Pawn move, which would help explain the difference compared to standard Chess.
Also, if the left horizontal double step is allowed, then it may be wise to adopt the rule from Glinski's hexagonal chess, which allows Pawns that end up on the starting square of another Pawn to make a double step from that square, so you don't have to keep track of which Pawn started where.