It has a nice balance and fits her character perfectly. I can foresee this will win many votes. I also think there will be quite a few Tina entries in the top 10 from what I've seen so far.
For the previous contest I submitted my design at 11.50pm on the day of the deadline. It was accepted luckily, but something may have gone wrong like loss of internet lol. So aim for the 5th but if you really can't try 6th afternoon?