P1P1 Wow, sold on mardu in one pack!
P1P2 Tough Choices, but think you made right one
P1P6 Think Salt Road Patrol is a bit better overall, but a 1 drop that can trigger raid is likely the best pick here, No raid so far, though.
P1P7 Maybe Act of Treason here
P1P8 I think Bitter Rev works here, since you have the 2 scavengers, but Krumar Bondkin might be a better pick. Really, whichever you pick you will likely have one or the other come back to you, so no big deal
P1P10 This is the second go round for the ponyback. This is a good sign for you. Have to take it to makde sure you are cutting Mardu hard. No key warrior cards coming around (Warrior Spoils, Rush of Battle, Cheifs) so someone might be building a warrior deck.
P1P11 Erase isnt somethign you will really ever bring in. I dont think Tormenting Voice is bad in mardu, will often need to ditch lands to refuel in mid.late game.
P1P12 Banner has no business in Mardu, but you have zero fixing so far. Better than the other options

P2P1 Tempted by murderous cut here. Much more versatile and likely the same mana cost (plus easier to cast with Delve).
P2P2 You need fixing and it is obvious that the table is gobbling it up early.
P2P4 I would not have passed on the Feat of Resistance, but I would have been wrong I think. As your second fixer, you need to take the Barrens
P2P6 Hate draft? I think the Bloodfire Expert is a bit better than thinking of a 4th colour with almost no fixing. You have lots of removal to trigger the prowess
P2P7-8 Obvious picks
P2P9 Really nothing here, so Treasure Cruise is a decent hate draft, or are you thinking of blue seriously at this point?
P2P10 I really undervalue the Skullhunter, so I might have taken the Rush of Battle. You probably made the right choice though
P2P13 Probaly the Valley Dasher, but I think the Archive is a giant pile of poop

P3P1 Seriously? You give the guy handing out packs a handjob behind the shed?
P3P2 Such a good card, sucks that ou had to pass land and the ponyback as it kind of works well together. Should get the ponyback back though
P3P3 WOuld have taken the Hordechief. You already have the warshrieker, and I think 2 is too many. 2/3 is such a good size for a turn 3 drop, especially if you get an extra token to feed Grim Haruspex
P3P4 Obvious Pick.
P3P5 Still dont have a Hordechief, but I like Despise in general. In isolation, this is the best pick for sure
P3P6 Trumpet Blast is so nice
P3P7 Thiking of blue again?
P3P8 Didnt pick it up earlier, so good to grab one now.
P3P9 Canyon lurkers is my favorite morph to draw on the Play. Never gets blocked, especially if you have shown a bunch of 5 mana morph cost dudes
P3P10 Solid wall, cant complain
P3P11 Glad to see another Bitter Rev came around. Was toying with picking it up a couple picks ago, since there is the dead drop, but might not even make the cut to have a second one. This coming so late means that P1P8 might have been better off wit the Krumar
P3P12 Morphs are good. Sure you wont need to run it, though