laundry and toilet shelving areas

The laundry shelving area has unsightly seams.  I should have changed saw blades on the table saw but didn’t.  Too much of a hurry to get it done, I guess.  Now I must buy some filler. 

The bath fan bulkhead area is drywalled.  The fan will go into the hole at the end.  The fan is side-vented, louvred. 

Now I have to find a 6″ to 4″ reducer for the bath fan.