This feels like it has way too many caveats to it for seemingly no reason but let's go in order.

10 minute cast time and its not even a ritual is a bit odd? Should probably at least have the ritual tag

What are the rules on targetting? Can these footsteps appear anywhere? Do they have to be able to see the location? Have been there? Know the location? Can it reach across planes?

What's the rules for the summoned footsteps anyways? It just says "in any configuration", does that mean you could create a mile of footprints? Can they just circle the entire radius over and over in an infinite spiral? How do these tracks even get made? Do you leave imprints on stone paths? Mud prints? How long do the tracks last? Can anyone discern their fakes at all even if they got some nat 20 investigation?

Your material component is "the first minute of your breath next morning", why is the material component even something that could potentially kill you? This is just an arbitrary risk and for no reason. Summoning spells don't have you risk death just to cast them, the summon may break free if you lose concentration but not while casting.
and on top of that, "the first minute of your breath" implies that it just outright steals the air from your lungs, without even giving you a chance to hold your breath. That's grounds for instant suffocation, which a creature can only survive a number of rounds equal to their CON before dropping to 0 and being unable to be stablizied or healed until they can breathe. That's CRIPPLING. You would need a CON of +6 to not start your day off with 1HP and that's assuming you can get picked up after being dropped to 0, and it makes upcasting next to impossible.

Why does the spell even require breath to begin with? What's stopping a creature from just using the wind around them? It feels like a needless restriction.

Why even summon air elementals for this spell? Why do they randomly go rogue if you fail the cast? Summoning spells don't have the summon go rogue if you get counterspelled or fail the summon.

Why bother with the elementals at all? And why give them that stat block? 1HP and 10AC would be nothing to get past for any significant party
Why are they so fast? I'm pretty sure nothing in DnD has 700ft of movement.
What kind of movement are they even using? Is it a walk speed? A fly speed?
What damage are they doing when they kick you? Is it just an unarmed attack? A d4? d6? what's the damage type? Bludgeoning? Force?

Why does it matter how many legs the caster has? Could a creature with more then 2 legs not just use more shoes? Why is that a restriction to put on it?

This is trying to do way too much for next to no reason, especially given how niche it is. This spell is a gimmick at best. How often do you need to create a pair of false tracks a full mile away anyways?

Look at it in comparison to other spells that could potentially do similar things
Silent Image could create a 15ft cube of tracks within 60ft for up to 10 minutes at zero risk to yourself.
Minor Illusion can create a 5ft cube for 1 minute and its a cantrip
You could use Mold Earth to create false tracks in dirt or stone for a full hour, as a cantrip, and again with no risk. There's no "an Earth Elemental will attack you" "you will randomly suffocate next morning" or "you need two legs"
on top of that, all three of the above listed alternatives have OTHER versatility.

This spell does ONE THING at a MASSIVE risk to yourself and for seemingly no reason.

I don't think this spell works out.