Set the grid size to 50x50 and light blue color.
You should see something like this...
Set the Rectangle tool to no fill, just black stroke (1 pixel-soft).
You will draw rectangles - always starting at the very left, and always going down to the very bottom.
Turn off Grid View. Make sure your rectangles are lined up (no thicker lines).
If you didn't do the previous step, it'll warn you that the rectangle must be ungrouped first. Check the box for "Don't show again" and say OK.
Delete the top right corner point of each rectangle. When you've finished, you should have something like this..
Select all your layers and group them (Ctrl+G). It should say "Group: 8 objects".
Make your canvas bigger (go to Modify>Canvas>Canvas Size).
Change to 800 x 800. Anchor the bottom left so your web will stay in the bottom corner.
Double-click on the Hand tool so the entire canvas fits on our screen.
Copy once (CTRL+C), Paste 3 times (CTRL+V). They'll show up on top of your original so you'll have to move them to see each one. You can tell you have copies in the Layers panel.
Move each web using the black arrow (not the white one!). It'll only work if you click on a black edge, not an empty white part.
One at a time, right-click on a web piece... Transform>... Choose each of the following once:
Move the webs into the corners so they line up.
Find a picture of an animal/person on the internet and copy and paste it into your web, just make sure it's not hiding/covering any of the web. It can be placed behind. You can also add a landscape behind it.
You can also change the stroke color/thickness of your web.