Photoshop

I have made it a goal to work with Photoshop more. I always fool with it at work if I am bored, but I still can't do great effects.

Here are my attempts to make an ice effect:

1)

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2)

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3)

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Trying to do more :

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I am trying to get used to using the Brushes, but they always seem like paint splatter/ strokes to me.

I have the worst time with fire, here I was going for a blue fire thing. I think the brushes i have really suck though.

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If you have a good site for PS brushes, please let me know. Also any advice please let me know.