Please tell me if i should add or take anything out of my Harpie Lady Yugioh deck?

IMO it looks like you are trying to do to many things in this deck. You wanna go aim for one thing I.E.(control,swarm,burn. ect). First off, 40-42 cards is your best bet, less cards is better though. then you should take out Stardust ault mode(hes only good in a deck based around him, it would take way to long to get ault mode activate and you get the dead draws from drawing stardust ault) along with all the ault mode stuff. I would put 2-3 Icarus attacks. Blast held by tribute is somewhat slow and situational because you must wait for the battle phase, and it has to be a tribute summoned monster, Mirror force is better. No entry is better than windstorm in terms of defending. Compulsory should be at 3, this stops almost every monster and its one of the most annoying cards in the game, + you can chain it to a heavy storm. Aqua chorus is situational, and its not that much of a boost anyways. All in all no, this deck could not stand up to a top tier deck as it is now. basically you have too many cards trying to run their own show in this deck.