The way I would make it new and improved, firstly I would get a better Straw. This is because if the straw is very tight and thick or very thin and small then the turbine itself with the sails would have trouble moving. So I would try and improve the Straw firstly in any way possible.

Secondly, I would perhaps increase the size of the sails so more wind could push fit onto the sail causing more force and having the sails spinning quicker

Thirdly, if I could I would add a Mini rotor to push the turbine round quicker so we don’t always have to count on wind and could make the process faster

Fourthly, acknowledging the fact of the sails, it would maybe be better to have it bigger, but also thinner and longer.