Good effort, you’ve really got the talent, you just need to tweak a few things.
To get the explosion to mesh better with the ground, add a layer of dirt getting kicked out horozontally at the base from the shockwave. The lighting on the dirt clouds is a bit too high contrast and bright, and doesn’t quite match up the color of the fireball. Most of the smaller dirt and debris getting flung out looks good, you could add some smaller particles too, however.
Keep working on it! You’ve got a knack for this stuff!