2nd cohort of caterpillars hatched

My second set of Papilio canadensis eggs (laid by my second female) finally hatched today! Only 2 of the 9 eggs haven't hatched yet. Here is my current inventroy for those keeping track:

• 7 mid-late instar caterpillars
• 7 first instar caterpillars
• 2 eggs

And here are some photos I took today

Egg:

1st instar:

Late intar:

The caterpillar colour pattern shouldn't change much after it reaches the above instar, although some Papilio sp. caterpillars do turn brown just before they are about to pupate.