A10theHero's Artwork--Look! I can art! (Please critique)

[A10theHero]

Hi everyone! I've been trying to get people to vote for Spyro the Dragon in the Smash Ballot, and I've been making artwork to go along with that. I'm still an amateur with Photoshop and I was wondering if I could get some evaluations/critiques of my artwork. Any other comments and such are welcome too! Thank you very much and I hope you enjoy viewing my artwork!

"Spyro the Dragon Splash Art"

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"Vote for Spyro!"

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"Untitled"

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Edit (4/19/15):
Well, I realized that I can just use Imgur to link to my artwork, so I'm just gonna add everything to the OP now.
But chronologically, the artwork in the second post comes before these pieces.
"Spyro Avatars"

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http://i.imgur.com/MSNU1Vh.png
http://i.imgur.com/zu2X0ZK.png
http://i.imgur.com/NxVGlQo.png
I was just messing around with filters and such on a picture of Spyro. They don't have much artistic value, in my opinion, but they still look kinda cool. And they led me to making a signature based on them too:
http://i.imgur.com/AwgStXQ.png

"Spyro Signature 2"

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http://i.imgur.com/1G5aOXo.jpg

"Spyro and Smash"

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http://i.imgur.com/O9DSkOW.png
This is definitely one of my favorite pieces.

"Spyro Signature 3"

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http://i.imgur.com/QBdqA4C.png
I like to tell myself that this is evidence of me getting better at making signatures. Though if that's true, I don't know.

 

[A10theHero]

I made some more artwork! Because I wasn't able to attach more files to the OP, I just decided to make a new post.

Alternative version of the original splash art

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"Spyro4Smash4"

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"Untitled2"

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Like I said before, criticisms and suggestions are welcome! Thanks!

 

[Chronodiver Lokii]

i would definitely look into getting cleaner renders/learning to use pen tool in photoshop. makes renders and images in general look a lot cleaner

 

[A10theHero]

i would definitely look into getting cleaner renders/learning to use pen tool in photoshop. makes renders and images in general look a lot cleaner

Thanks a lot for the suggestion! Just a question though. Where specifically do you mean I should use the pen tool? On Spyro? The background design?

 

[Chronodiver Lokii]

spyro
you can see the edging where it was cut from the original background.

 

[A10theHero]

spyro
you can see the edging where it was cut from the original background.

Okay, yeah. I see what you're saying. I'll try to avoid that in the future. Thanks for your help!

 

[A10theHero]

I just added some more artwork. Your feedback would be greatly appreciated!