Some tips,
use better quality renders and/or stocks,
use better quality effects(c4d's).
It goes all about QUALITY, not QUANTITY.
Place text in, once you feel you've got the hang of text. I've been doing photoshop for let's say 2 years now, and text still fucks me from behind >.<, text can make the sig, or text can break the sig. Remember that.
Seeing a texture once can be cool, but using it in every sig get's meh.
Anyway, I hope you will stay 'round here

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Welcome to the GFX section of MPGH. I hope you like our community, and yeah, this is from the whole GFX staff. We hope you will like it 'round here, so please, stick around for much longer

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Enjoy your stay!
Ps, if you have any questions, don't hesitate to ask any of us!