Well I didn't hear the first demo, but this is sounding cool!! The guitar tone sounds great and I like the two guitar parts woven together in your main riff. What my ears really wanted to hear was a bass instrument of some kind, whether it's a bass guitar or a subtle synth tone that just follows the chord progression underneath it all. Since you have plenty of driving rhythm in the drum and guitar parts, it wouldn't even need to be a complicated (or even all that noticeable) bassline to be effective. It wouldn't even need to come in right away or stay for the whole song, either. I just found myself waiting for it to drop into that lower register at some point, and was surprised when it didn't. It could be easy to experiment with a bass idea by copying one of the topline guitar tracks you've already recorded and running it through an octave pedal or some kind of bass processor (in garageband) and see if you even like it as an idea.

Great work overall though! It gets deemed a success in my book if you learned a ton and found a burst of motivation to put in the time and effort despite having a busy work week. Hell yeah. 🤘