...So I don't think you quite understand what Kael meant by "
The wording must be exactly the same." ^^;;;
Look at your ability and the difference between that AND the card art image. Your (non-upgraded card) ability states:
"All your monsters without skill have now a weak skill"
when your card says:
"All your creatures without skill have now a weak skill"
Monsters isn't the same as creatures.

On that note, you should probably fix the grammar in there while editing the card art to something along the lines of: "All of your creatures without skills now have a weak skill." That statement is a lot more fluid and corrects all the issues regarding pluralism, parallelism, and priority order in terms of action-description combos. But I don't think poor grammar is something that will completely prevent your idea from entering Level 1.

Oh, and please put the artist credit in the bottom left corner of your image for both cards, as it's ~purple-whirlpool's art, not yours.