A couple of points, someone said he should be over the mirror staring stage. I would say after I broke up with my ex,I lost a lot of weight, changed my look...became ALOT more body confident.
Ok an hour straight, does seem excessive,
but I did spend ALOT of time preening and it boosted my ego.
As for projecting himself onto the wall...That is SO something my fella would do...But in good humour.

What you need to figure out is how serious this is, if you can tease him light heartedly about it and he responds with humour...I suspect it's probably a phase brought on by his break up.
If he gets defensive or snarky then maybe have a more formal chat about it at another time.
His response to losing his family...totally normal...I would be more concerned if he wasn't showing signs of distress, especially at this time of year.

Remember you can miss what you thought you had probably more than the reality.

You compare his attentiveness to your ex, dangerous ground considering what your ex was up too.

I don't respond to about 2 out of 4 of my fellas texts,not because I don't love him, I do very much.
But honestly the more I reply the more he texts.then I get nothing done, and we would have nothing to talk about when he calls each night. (We don't live together)

Also he often doesn't text anything that requires a reply, it's not a question or query just a statement or observation.

All this aside, your both pretty fragile in regards to starting a new relationship, and both carrying a fair amount of baggage. Trust your instincts, take it slow and talk to him.

But If you feel your persistently watching for flags to go up, it may be your just not ready to be involved yet.

All the best...hope it works out, whatever you decide.