One word - Talented

My friend, Ahmed painted these using the simplest software/tool, Microsoft Paint... I was really impressed by his artistic skills and ought to try it out myself......
1 hour.......2 hours ..... OK....I give up. What I have drawn is just a piece of crap...darn

1st pic: Is this the famous Max Payne or some thug from Godfather? I wonder....
2nd pic: Looks more like Gordon Freeman from half-life series....

Here's my work: