Love that colored Robot with the tentacles!
The quick lines make it look very agile, giving the whole Pic a sense of speed.
I´d refine those rings around the tentacles though, the last one should be a bit thicker at the side facing the observer and less thick on the sides, so it feels more like it is in a 3d environment...Just my 2 cents^^
Thanks for dropping by my sketchbook,Vain!
You seem to have a good eye for colors and I like Pikachu along with the robot but don't ignore the studies.Also,the portrait you made with the ballpoint looks pretty good to me.
I love how sketches turn out with a ballpoint and I'll have to do some myself soon.