Keystone arch
A keystone arch: a stone arch on two piers, two to six of its stones named for the things the business stands on and the 'keystone' at the top in brand colour — the one piece that holds the rest up — with a line set inside the arch.
When the AI picks it
MarketiQ’s Creative Director favours the Keystone arch for posts that teach or prove a point, when the message is one sharp insight or a list. It is built first to teach.
It reads each post’s goal and shape first, then its own words, the platform and the facts you have, and offers this template only where it fits.
Who it’s for
Any business. Nothing in it assumes what you sell, so the Director can offer it to a software company, a café or a coaching centre alike — whenever the post fits.
Platforms and sizes
| Size | Where |
|---|---|
| 4:51080 × 1350 px | Instagram, Facebook, LinkedIn, Threads, Reddit |
| 1:11080 × 1080 px | Ads |
| 9:161080 × 1920 px | TikTok |
| 2:31000 × 1500 px | |
| 16:91600 × 900 px | X, YouTube |
| 1.91:11200 × 628 px | Newsletter, Blog |
Single image. Each size is laid out for its canvas, not cropped; the sample above is the 4:5 version.
What it needs
Only your post. It is made from your copy and your brand kit — there is nothing else to prepare.
Rules the AI follows
Word for word from the template library. The Director follows the copy rules when it writes into the template, and the visual review checks every creative against the visual rules.
Copy rules
- Every label is the post's own words — no invented numbers, scores or percentages.
- The keystone is the one thing every other stone depends on; the stones are what it holds together.
Visual rules
- A semicircular arch of wedge stones in a pale brand tint on two quiet piers over a ground line; the flared keystone at the crown in full brand colour carries its name, tagged above.
- Named stones carry their words inside the stone; an optional line sits centred in the arch's opening.
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Bottleneck
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Make a Keystone arch with your brand.
MarketiQ writes the post, picks the template that carries it best — this one, when it fits — and fills it with your logo, colours, facts and copy.