Yes it does mean something but to know whether Bliss is male or female you need to wait for more of the molt to happen before you will have the answer you are seeking. You have already been told what it means so far.
If he is not getting yellow anywhere else in its body, then it's a male. If it's getting yellow anywhere else, you won't know for sure because the yellow on its face could be just a 'spot' and not the secondary sexual characteristic it usually represents.
Only on his head and a little on his crest. Starting with his face and growing out back towards the back of his head no where else is getting more colorful.