First Edit: Lonesome as a Hotel Lobby Christmas Tree

[Truerenigma]

Succinct little simile. Just a few notes.

Lonesome as a Hotel Lobby Christmas Tree

Maybe shorten to just "Hotel Lobby Christmas Tree" here.

Easily overlooked

among late arrivals,

Let it be overlooked  by  late arrivals and early checkouts.

early checkouts.
Lights obey a timer,
while an aged angel
is crooked, burned out,
but its halo freshly painted.

"but its halo freshly painted" hurts here. How about something like "though its halo is freshly painted"?

I'd like to think
you'd notice too:

The I'd and you'd here. You may be better served with a different voice  or verb tense.

stop, smile,
whisper some words
just loud enough<-This line could be cut.
so you feel a little less alone.