If they don't lock, you don't have them in the right order.
First you don't draw it you find the pieces and you put it a together
To begin putting the comic together, you need all 8 pieces.
Collect all the comic pieces, and on the comic it has a code: 9305 , but you can only insert it after you found all the comic pieces and return it to the man in the store
you need to put the pieces together into a comic strip.
The lockers on Big Nate Island have combination locks. Nate's is written on the comic pieces.
Once you find the Pieces of the comic then you'll see it says the combination on it!
Get the frame from the guy at Klassic Komix, and find the other 8 comic strip pieces around the island. Fit the pieces into the frame. There are words written across the middle which will tell you whether the piece goes at the top or the bottom. The words spell out Nate's locker combination, which is "nine three zero five". Once you put a piece in the correct spot, it will lock. Complete the assembly and show it to the guy at the Komix store. He will give you some gum. Go to Nate's locker in the school and open it to find the Blueprint to the secret room.
move the lock with the zero in them and put 9,3,0, and 5
you need to find all of the comic strip pieces and you will then have the locker number on the paper in the middle
all you have to do to get a pack of gum is: on Big Nate Island you have to collect all of the big nate comic book pieces.
talk to nate then find the the sixteen pieces of the map. (It only looks like less but find sixteen.)
You have to assemble the comic strip from the frame (which he gives you) and the 8 missing pieces that are scattered about on Big Nate Island. (see related questions)