RM Skill: Undisclosed
The second one is completely adorable! So simple but so expressive at the same time. Something about the spherical head and the eyes reminds me of Earthbound or Mother 3. There are some stray lines and a few niggling anatomy issues mostly concerning the neck and arms, but for a quick sketch it's immensely charming and I would love to see more like it.
I'm loving the tree as well. It must have taken a while to do, the extreme complexity is almost mural-like. If you revisit it anytime soon all it would take is a little bit of detail shading to emphasize the vines, and maybe a stronger color like red or yellow on the flowers and star to really make them pop and contrast with the cooler blue coloration of the tree.