Nice doodle
Ok so this here is pretty nice and good for a doodle and the space is fully covered so you didnt just draw one thing and move on which is always nice to see in art. I am glad you used one full color for this, except for the text, because it really flows well this way. I know some color variations are always good, but this works but it is ink art and that type can all be consistent. I like the text but the color of the text is light, very light, and I almost can't read the text here, so maybe next time just darken up the color and give it more to read off of. The hints of blacks within the blue was a nice touch and shows a highlight to more important aspects of the art here. Overall very good work.
~~THINGS TO IMPROVE ON~~
Darken the color of the text and you have something perfect
~X~