How to Zoom in smooth and straight and also make sure Elf is not blurry?

Turn the Position on-screen controls on, you'll see bezier handles when you select either Keyframe, they both set to smooth, change them to linear.

I'm going to say I don't think that Elf's face is all that clear in the original. First, don't judge quality when the video is playing, judge when it's on one single frame. And to clear that face up, you want a Sharpen filter, which doesn't work as easily with video as it does with stills. Open your PNG file into Pixelmator Pro (or whatever) and use a Sharpen brush over the elf's fact, not much, just a tad. Cause I'm going to state right now that in the original graphic, his face is not as sharp as the rest of the image.

As soon as you exported the clip as an MP4 (and it really doesn't matter that much which format), the very high resolution elf png was burned into the resolution of the background video at its scaled size (and you didn't say what the resolution of the exported video was.) If you're scaling that video up over 100%, everything in it will start looking soft.

You might be better off exporting the background/snow globe video by itself, then in Final Cut, place the elf png in place, set them both in a compound clip then animate the scale (or Ken Burns) from there.

The easiest way to do that smooth zoom is by using Ken Burns.

The image has more than enough detail, it should not be blurry. What is the file format? PNG? That should work. What is the project frame size?

Go to project properties. ⌘ J and click the Modify button. A window will appear that gives complete project properties. What are the dimensions of the PNG?

The problem with clarity stems from the fact that you are not dealing with the PNG by itself, but it is mixed in with the Crystal Ball graphic as well as the background.

How is the rest of the scene constructed and how is the elf graphic inserted into it? Is a dropzone involved?

Oh! -- select the clip with Ken Burns. Type the down arrow key. Type the left arrow key. This will put you on the LAST frame of the clip. Type Option-F to create a "hold frame". You can resize that for as much time as you need.

Add the Transitions to your logo clip. Select the logo clip AND the Transitions, then make a Compound Clip out of it. Compounds isolate effects so they're self contained within the compound.

I didn't find the Live Chat form... plus I need to be able to attach a couple of zip files to send to you.

Contact me using this form: https://fcpxtemplates.com/contact/

Make sure you reference your user name here. I have some tools that may (or may not!) help - but you can try them out.

I've been having problems with my site today — if you run into some kind of page won't load problem, just keep refreshing until it loads.

Something may have malfunctioned — I didn't get the contact form. I checked the form (it seems to be working) and I checked gmail directly and I didn't find it there either. Could you please try again?

That said, you should not have resolution problems with Ken Burns since you were able to increase the size of the video. On the other hand, I think you might like what I'm going to send you better.