This is no longer a sketch, but a color rough.
At first I was going to paint it like Eevening's reword, but somehow it ended up like this. The other reward is also painted, so it may look like I cut corners on the Eevening reward, but of course that's not the case.
When I draw artwork, I try to make it 80% complete at the rough draft stage. In other words, this artwork is supposed to be a sketch reward, but it has reached 80% completion of the main artwork. However, I spend more than twice as much time on the remaining 20%, so if I reflect only on the production time, I would say it is a sketch. I may have painted a little faster because I drew a number of color roughs in a short period of time.
Also, I actually drew Naganadel for the first time.