jadarite: Eep!
You can't break the kanji, then it'll be a different one! ;)
Those two katakana are the katakana for the sounds "ro" ( ロ ) and "e" ( エ ).
Any Japanese would go wild if he saw such changes. =P

It's like breaking a word in half: instead of "castle" you write "cast", and it's a different thing.

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It looks great with the whole kanji.

( side note: 口 is also the kanji for "mouth" - kuchi ^_^)