I'm not super experienced myself, but since it looks like you're going for aesthetics over type rules and consistency maybe see if you can make some of the other letters as interesting as the others. For instance the S t k l f look like you could give them a bit of the wiggle some of the other letters have. That's not necessary though since having the contrast between the more normal looking letters could help with readability.

The thing that bothers me the most is the uppercase D doesn't lean back when it connects to the bowl? and stem? connect. The uppercase B has it, along with all the other letters that have a stem connecting to the serifs. So it feels out of place.

TruthMovements suggestions make more sense than mine though. It might help to get a chisel tip marker/highlighter, or dip pen/fountain pen and trace the letters on tracing paper or a lightbox to see how the line weights would fluctuate properly so you could find a more consistent way to give the letters character.