Best Friends (+speedpaint)

The first thing I love about this would be the way you've shaded them. It helps give off a lighthearted feel to it, as if you're looking into a memory or a dream.

The second thing is the way you've created the line-art. I would say that you have been drawing digitally for a long while and have gotten comfortable with this style you've developed.The way you drew Chara's hair and Asriel's ears gives a sense of the freedom they are enjoying.

Finally, I just adore how you colored them. The flowers could've been drawn just a bit bigger since I didn't see them at first, but they look rather cute. Also like how close you tried to keep them in terms of designs considered canon.

Overall, job well done. Their postures look fine, the hands are amazingly well done, and the expressions are just right. Keep drawing good art, and have a nice day.