I have TD Ameritrade and my level II numbers do no

I have TD Ameritrade and my level II numbers do not show the whole picture...for example, when I place a buy order for 5000 shares, and sometimes it only shows 100 shares...I am guessing it is like a poker game...anyone can see the whole picture?

If yes, please let me know the number of shares selling at 2.84...Ameritrade shows 1500.

Thanks!