Your ask: true blends of IM Fell + EB Garamond and IM Fell + Cardo. The board has two IM Fells, English (F06) and Double Pica (F07), so each is blended with both. Each pair in capitals and in mixed case, in quarter steps from pure IM Fell (top) to the other face (bottom), cap heights matched. The method is round 94b's: each letter's outline moved part of the way from one face to the other. These four faces are built alike (old-style book romans), so every step holds together; the one letter built differently is the P (IM Fell English's and EB Garamond's bowls are open, Cardo's and Double Pica's closed), which blends through distance fields instead, so its bowl closes smoothly.