Nice, like Sinnertwin said, it's certainly a good start.

I don't tend to watch video reviews, preferring to see the toy in person the first time myself. However a couple thoughts:

You did stay on point and didn't fluff around too much.

Perhaps, given such a small figure it might have been visually tighter to be closer to your background. I liked the red curtain, maybe if you could get your camera up to the level of the brown box you could have the figure on top of the box in front of the curtain. I'm not sure if that would be stable enough.

A size comparison is a good idea, but might be worth using a figure that you know is very commonly owned among collectors, either from the same line the review figure is from or a previous one of similar styling, ie prime toy for RID toy or generations toy for this little magnus.

Your description of the transformation was good, keep in mind if you move to bigger figures, a detailed description of the entire transformation could become rather unwieldy.

Anyway, my 2c, keep up the good work.