Hey meloo, Maybe there's a bit of confusion on the tokenize price, I checked your tx history and it was 3.33 hive which is the base price to create an NFT, so each time you mint a new artwork it's 3.33 HIVE. If you wanted to make multiple editions of that artwork you would have added 0.33 HIVE for each edition. 

So a 1/1 edition is always 3.33 hive, if you made it 10 editions it would cost 6.3 hive (3.33 + (0.33 x 9), hope that makes sense!