Yeah, I tried naming the files to help, but then Google Photos doesn’t make it easy to see those.
The first picture is the vent outside. Essentially, the hood fan (inside) exhausts into the top of the metal box that’s in the wall. On the other side of that box, around the middle, is a vent that goes outside. Then there’s just a dead-end area of the metal box where some bugs have collected.
<span style="color:#323232;">+---------------------------------+
</span><span style="color:#323232;">| (Hood fan blows in here |
</span><span style="color:#323232;">| from inside house ) |
</span><span style="color:#323232;">| |
</span><span style="color:#323232;">| |
</span><span style="color:#323232;">| (Vent to outside house) |
</span><span style="color:#323232;">| |
</span><span style="color:#323232;">| |
</span><span style="color:#323232;">| (Bugs) |
</span><span style="color:#323232;">+---------------------------------+
</span>