This is Nala looking at shock at Mheetu who is covered in blobs of mud. You can just about see Simba at the top of Pride Rock in little dots. I think I did quite well on this drawing, compared to the other ones I've drawn.
Basically, Simba took Mheetu somewhere and they played in the mud and got really muddy and dirty. On the way home they parted and Mheetu bumped into Nala who was vary surpriesed to see her baby brother all messy and dirty.