The letters are OK and the 3's are OK, over-inkng.
But, through the top of the C and E of CENTS and through the bottom of the first C of CANADA there are seemingly engraving cuts showing orangish ink. These would be mistakes in engraving or re-entries(?) if other stamps did not have these same varieties.


Better scans or clearer photos are need to see these clearly. Your zoomed in images are somewhat off from your zoomed out image of the entire stamp.
Your photos, nice as they are, are out of focus for such detailed work. You need to scan these at 300 to 600 dpi on a flatbed scanner to see in-focus and clear details please. Libraries have scanners at times.