Use the paint program SAI, it'll give you better blending options. Photoshop is better for having better brushes though. use some texture brushes, they help give that effect. Storm is good, what about the rest of the space to the left?
OMG U dont suck man! Ur great!! Practicing more will help u to become a pro painter xD Its not like comics (of corse, cuse got many details on shadows, etc) but it's more than normal quality!! Its just so good man!!! =D Keep on working! U got a artistic future! 10 for me =+)