My seat on the CX always bothered me, I'd pulled off simple but landed unfinished...
The introduction of the tail changed that for me. It completes the bike and gives it a complete new look.
Can't wait to get it finished up and add paint!!
Consider the lines of the bike...
Mimic the curves used in other parts of the bike, most importantly the tank.
Consider how your paint work will flow between the tank and seat.
When finishing use colour to unite and avoid feeling like a patchwork quilt.