A signature is not better for the time you used on it.
Signature is not better with more efects
Sometimes the simple efects can make an image awesome
When a guy is spending time nearly every day at whatever he want.. its usually he will get better
A good GFX can be amazing things at some minutes cause a good GFX is having LOT OF HOURS PLAYED AT HIS BACK lot of years...
It was not 5 min, it was 5 min + all what you needed for learn how to do what you did.
some time ago i didnt valued my work cause i knew i was still learning...bro.. we all are learning and we will still learning more and more
You should to do allways your 101% then you will learn every day and you will can value your work every day too