.... some random comments on your post/itinerary....
In Marrakech, architectural photo opportunities abound, you need to keep a sharp look-out, its easy to just walk past a gem and not notice, in the Medina old doors and frames with ornamentation, wood-carving or rendering often obscured by climbing-plants or displays of goods for sale, taking a second look can reveal a bit of history, even old the door fittings, can be ingenious hand-made metal-work.
The Saddien's Tombs after restoration in recent years, apart from the Tombs, the site and its environs are of interest.
To capture drama played-out every evening, from the upper terraces of Cafe de France, just before Sunset and the final call to prayer, with the Sun setting behind the Koutoubia, as the street-food-traders set-up for the night's work on Jemaa el Fnaa, lighting grills and lanterns, smoke and clattering pans, street entertainers are assembling, acrobats, musicians and dancers, snake-charmers, tuning and limbering-up, and the call to prayer from four nearby Minarets as the faithful stroll in increasing numbers towards the Mosques, by the time they emerge, its dark, and the lights and flames through the steam and smoke forming a lace-like fretwork above the stalls, by now the drums and strings with raised voices and laughter of the gathering crowds, punctuated by moped sounds make for an unique cacophony of sound.
So don't rush away from Marrakesh too quickly.
The trip from Tafraoute to Taroudannt... if you do this trip via Ighrem/Irherm (R105, R106). it involves a slow high drive with terrific views over the Sous Valley to start off with, descending on to the flat Sous Plain. I think it's a better drive than the more westerly route via Ait Baha, and you have an opportunity to see an ancient half-collapsed crater at Amagour near the Mines of Assad. This small area, a horseshoe shape like crater, with boulders and holes, under-ground streams and waterfalls, caves and steep sides to climb, lots of wildlife here.... don't put your hands into any of the holes though.!... it's an unusual feature on the otherwise flat Sous Plain. A village in two parts, with so much water here small-holding market-gardening flourishes here, I suggest you park your car behind the Mosque, someone will stick a head out of a door nearby, just ask to 'keep an eye' on the car and have something to hand before you leave, 20Mad.or so. The Mosque is easily found... just view the horizon.... How to get there, off the R106 take the P1723 north of Amzawr/Ait Abdelah, and eventually you arrive near/at Taroudannt on the N10.
https://www.google.ie/maps/@30.2420683,-8.852663,2449m/data=!3m1!1e3
As Taroudannt is older than Marrakech, tucked away are several small ancient neighbourhoods of tiny and grand houses, narrow passages-ways pass under ceilings/floors of overhead dwellings, all mixed in with more recent structures. If you find Bd.el Qods, and follow it as it meanders west in to a variety of cul-de-sac, there's one that has some of the oldest houses, it can seem confusing, however, there's just one-way in and it's the same way out, and perfectly safe and welcoming.
In the Casbah, the Hotel Palais Salam, formally the home of the Pasha of Taroudannt, its magnificent gardens are not to be missed, with original furnishings and fittings..... just go in and order a coffee and snack and have a browse.