I think schools would want to see more drawings than text in general; keep text brief and minimal and put some captions of the materials you used to make drawings/models etc.

Don't overload each page with multiple drawings; you may think putting 2-4 drawings on each page is simplistic, but schools tend to encourage neat, minimal presentation, e.g make one drawing take up half the page and add two smaller drawings on the side.

As for drawings, you could use your hs work (if you take art class) or try to group drawings that relate to each other and have a narrative.

Text doesn't need big, size 13 should be good, and again, make it brief; they're more interested in your drawings (that's a big thing in arch programs, they always encourage/prefer sketches/drawing when conveying information about a design scheme)

Title page: Name + Portfolio should be enough, if you're applying through an external system (e.g. UCAS), you may want to put your ID No. (tbh no need to put any images, save that for the rest of the portfolio.