I doodled this yesterday in my Sketchbook, and I just got it colored in today. Lächeln für mich
means "Smile for me" in German - hopefully.
(never trust Online Translating Dictionaries - sometimes they'll give you the wrong context/translation of a phrase)
The title is pretty self-explanatory - Ludwig/Germany isn't the happiest guy (he's actually more of a sadist), but his older brother Gilbert/Prussia likes to joke around.
Comments wanted as always.