@Dabel Thank you! It's hard to say how long it took per panel because I didn't do them one at a time. I did them in groups of 9. So I did the inking on 9, then put the flat colors on them and finally the shading.
I know the coloring and shading took me like 2 days for 9 panels, but the inking took me way too long in my opinion since I had a hard time to get into the groove originally. All in all I think I started in february and finished at the beginning of this month.