Cheers Kenmei, glad you like it.
Yeah, I have a very long way ahead of me to be able to read seal scrip fluently, too. Basically the study of it is endless.
The 引首印 (top right) says 無心
The 姓名印 (first on the left in intaglio) says 品天 (think Buddhism here) and it's a phonetic transcription of the first part of my surname - "Ponte".
The 雅号印 (the bottom one on the left in relief) says 龍涙, as in 精神(龍)の墨(涙).
Here is a better picture of them
