The banner is taken from Bulbapedia, article: Let's Join Hands/手をつなごう (Pokemon Best Wishes! Anime final end theme). Earlier versions of this signature have got me in trouble with moderators, so proceed with caution if you use it. I advise reading the signature rules carefully when using banners. I had to shrink and cut the image in half to comply with signature rules.
The text above it is Everyone Together! in languages that I know (English, Chinese), have learnt (German, Japanese), or have attempted to learn (Korean), arranged in which languages I have learnt first.
The lowest text means "If you seek peace, prepare for war" in Latin. Just something I put out there.