I made a little chart to show some different pawpad layouts. Keep in mind, these are for positioning purposes only, and do not necessarily reflect the exact look of any final product I create using these as a reference :)

1. None
2. Metacarpal pad and digital pads
3. Metacarpal, digital, and carpal pads (carpal pad can be added to any design here)
4. Metacarpal pad, digital pads, and thumb base pad
5. Metacarpal pad, digital pads, and anthro-positioned carpal pad
6. Metacarpal, digital, thumb base, and anthro-positioned carpal pads
7. All of the above, plus carpal pad
8. Digital pads, thumb base pad, and main anthro palm-style pad
9. All of the above, plus interstitial digital pads
10. Whole palm side pad.