1: Why is it blue? The torch doesn’t look like it contains any gas that would yield that color. Add a sleeve to the torch so it connects with the fire better. When the sandstorm hits, the torches are too big. The fire would barely make it off the source in that sort of weather. The fire isn’t lighting the dust around it.
2: This is a miniature tank yes? If not, the smoke animation is way to fast. It could potentially be that fast just as it leaves the fire but it would slow down fast. You need more diffusion. Sometimes you need to kill a smokepillar that quickly for performance reasons, but then you need to make sure that it has time to fade out first. Right now it goes from super thick to gone within a few frames. Try to make the fire light up the smoke more. Now it looks like the smoke is dust in the beginning with that beige color and then turn into gray smoke. It doesn’t read like the fire is lighting it.
3: I don’t know if they are too slow or not. The small dotted debris have one speed. The soft dust has one. The fire a third. Make sure the speeds belong together so it’s one, whole effect, and not separate emitters. Also, match the colors of the dust. There are some mustard colored dust puffs at 1.06 that doesn’t match the rest at all.
1: Looks good. Might die a bit too quick. Have you tried adding a secondary effect with mist rolling along the ground at the bottom of the chest?
2: It’s got a strange pace right now. It’s too slow to be a power activation, but it’s too fast to be a cinematic show off thing. Try adding something that singal the end of the transition, like a sheen or a ice crystal burst.
3: I like it. It’s a good middleground between realistic and readable.