This is a revamped version of a previous post. I corrected the front drape based on the feedback I received from the good folks at CMON. I also redid the faqce and the yellow shoulder pad.
I know that it is hard to freehand letters with a brush.
I would see if you can find decals with lettering to use instead. Try your local art/drafting supply store. They should have a selection of dry-transfer decals of various letters.
Either that, or practice practice practice.
Also, you may want to darken the pupil, and add a light reflection of pure white to the eyes.