I tried some online steganalysis tools on the Solution.png image but with no luck. Granted, I was only able to do the most basic of steganalysis due to a massive lack of knowledge of the field (and because StegSecret is entirely in Spanish).
Tools/sites used to no avail:
http://incoherency.co.uk/image-steganography/#unhi...
https://futureboy.us/stegano/decinput.html
http://www.mobilefish.com/services/steganography/s...
http://stegsecret.sourceforge.net/
http://manytools.org/hacker-tools/steganography-en...
For things asking for passwords, I tried LOOKINSIDE and 467767 together and separately, but nothing came of it.
I tried StegExpose but I apparently don't know what I'm doing regarding Java because I couldn't get it to work. Anyone with more advanced knowlege of steganography having any luck on that front?