Whale Hidden Picture - 20x20 nonogram

Instructions: Solve this Paint by Numbers puzzle and you will see a sea whale picture. This is a classical nonogram or Japanese puzzle with standard rules.
To solve it use numbers on the left and on the upper side of the grid as indices. These numbers show how many colored cells are in each block. For example, if you see the numbers 5,2 on the left of the row, then in this row there 5 colored cells in block, then some cells are blank, then 2 colored cells.

Author: maritikh