I wonder if the feedback would be more valuable if it was an apples-to-apples comparison where the subject for evaluation was the only difference.
None-the-less, immediately I noticed the improved audio (less reverb/compressed) in the second video, more than I noticed the illustrated -vs- organic hand.
If it were me, I would probably go with the version that’s easiest to produce, because it didn’t feel that either video was substantially better, from the perspective of the style (illustrated v. organic hand).
I felt video #1, from the standpoint of content, was much better. Primarily because anyone doing this (that’s a potential customer/future revenue stream) would be using an Apple Pencil. It’s much more efficient and holds the viewers attention to stick with that single mode of teaching.
You could then cross-link/embed-link a video for “Sketchup for iPad - No Pencil Required.” This gives you the best of both words: keep the videos streamlined for the potentially serious/vested users, while providing a resource for others without the $100 Pencil accessory, to adapt.
I only say this because pacing is perhaps the most important component of any video, after the content. For example: I’ll watch a terrible 480-resolution video that is well-paced with clear audio, before I’ll watch a 1080p video that is too slow, too fast, poor audio, or monotone/TTS audio.
If you don’t believe that to be true, consider how many times you’ve searched through several different videos to find one that does a good job explaining without being far too long, or too abbreviated to be worthwhile.
Of course, it’s all subjective – that’s just my opinion in attempting to move it slightly into a more objective/quantified realm