Good effort, but incomplete. Laptop parts can be very easily damaged, so removing all the screws is important.

Before trying to remove the top cover, make sure to remove the 4 srcews that were hidden under the keyboard and also two additional screws on the bottom, otherwise you will damage the top cover. If you remove all the screws, the cover will come off a lot easier :-)

There are seven screws, not eight. You need to slide away to cover to get to the seventh screw near the Windows 7 label.

There are two more screws (in the bottom of the picture) that need to be removed before the top cover can be removed.