Blotcode. Another one 2D code format

Being still unsatisfied by aesthetics of the 2D codes, I created next code format with provisional name: Blotcode. You can use this link to generate random code:

http://www.imatrix.lt/images/rolls.aspx

Blotcode has error correction and can keep up to four byte long data string that is enough for majority of applications. I have implemented new way of bit presentation in that code: each bit can be visualized by at least two different shapes ;) White element can be either white circle with black border or just nothing; black element can be either small or large black circle. This makes code more attractive and distinctive.

Once again, I do not try to replace standard codes like QR Code or Datamatrix... I try to find a beautiful form only;) I try to create a code that looks attactive for us, humans.