Bat Pediment and Fluted Molding

My house has very little trim/molding. The windows are bare, and the baseboards and door casings are small and plain.

As the first step in my quest for a house-wide trim upgrade, I bought fluted molding and corner blocks for the doors in my bedroom. I had the idea to paint black stripes into the fluting to coordinate with the room’s black and white striped accents. Alas, my hands are too shaky to paint with that kind of precision. The stripes were sloppy no matter what I tried, and I had to abandon the idea. :(

But even in plain white, the fluted trim would be an improvement. I went ahead and installed the trim around the closet door... poorly. My measurements were off, and I did not like the way the corner blocks looked. :(

The quest was not going well.

I'd used glue to install the trim, and removing it caused significant damage to the wall.

The quest was not going well at all.

To cover the damage, I needed some kind of trim that was larger than the fluted molding and corner blocks. Surfing the web for ideas, I came across this:

source

The shape immediately made me think of an MDF bat I'd bought.

Inspiration! I would make a bat pediment!  :)  Using careful (extra careful!) measurements of the doors, I drew and cut a template out of cardboard.

When I was happy with the size and shape of the template, I traced it onto MDF (medium density fiberboard) and cut it out with a jigsaw.  Because the MDF was about half as thick as the fluted molding, I cut two pieces and glued them together to get the necessary thickness.

I painted all the pieces white and glued the bat in place.

And installed the pediment over the door. 

I'm liking it, but it doesn't look quite finished. Perhaps a bit of thin trim along the bottom of the pediment?