Here's some constructive criticism for your next film. Please don't take it too harshly

To start off, if you have to use an iPhone (this really applies to any camera), then try to find a way to make it stick to whatever surface you're filming on. Try using tape, or perhaps something like blu tack. That way, you wont have as many camera bumps. Also, the main character was always blurry as he talked to the camera, while the background appeared crystal clear. Although moving the minifigure backwards would make him appear smaller, it would probably solve the focusing issue. And lastly, take more pictures. That way, you can increase the framerate and make smoother animation.

Since this is your first film (or at least I think so... I didn't see any other videos on your channel), there's tons of room for improvement. Just keep working at brickfilming, and don't give up.