I was unsure about this a long time because I'm not usually someone to give a thorough feedback, (mostly because I don't know what to say) but I want to make an exception here. I hope you think this is helpful and I hope you don't get this the wrong way, I'm just trying to help out. This is about everything you do and not just about the art inside this topic
So, to make it a little bit organized, I'll go with some steps.
1) Take the time you need
A lot of your drawings are good when it comes to the idea, but they also look like you should have spend more time on them. Your major problem are white spots inside colored areas, like
here. On some characters you did a fine job (Cera's hair) but just look at her shirt. There are a lot of white spots there and on other characters too. It is a fact that some of them are a result of the paper you're using, but take your time and try to make the coloring as clean as possible.
2) Stick to one kind of art (traditional/digital/etc)
A lot of your drawings are traditionally drawn characters pasted into digitally drawn backgrounds like this:
http://fav.me/d7kyvn1There is only one thing to say here: don't do that.
There might be some ways for this to work but pencils, colored or not, are very hard to fit inside the perfect coloring you get when drawing digital. If you'd use other ways to color your traditional pictures (markers for example) it would look better, but unless you have years of experience, doing this in a way that it looks real is really challenging
Now, putting something handdrawn into a real environment is something else and while also not that easy to pull of, it is at least easier. But - take yourself time again and also put some thought into that. I'll take this for an example:
http://fav.me/d7sld0jIf you take something out of a picture, pay attention to how that is done. There are still some parts there you can cut away, like some white spots on his back or where his front leg knee is. In some other ones you removed parts of the outlines as well. Just pay some attention to what you're doing when making this.
Then comes the thinking: If a dinosaur would be there, he would affect his environment, too. Like, the blanket would be a little pressed down where he stands and he also would create a shadow. Another thing are colors. They work out here, but think about this: what color has something you see at night, at morning, at noon or afternoon. Or just look how the colors seem in the picture, and then adjust your drawing so that it fits.
Long story short: your drawing needs to influence the place you put it into and the place needs to influence the drawing.
3) Sizes
This is also a very important thing to get some consistence in a lot of your drawings. I don't say you need to draw the Gang as bis as they should be (and believe me they're big, I once did the math and Littlefoot would reach 4 meters, they're dinosaurs after all) but it would be very good if you establish one size per crossover, like, how big are they in my world, in the world of Hyrule etc. And then stick to that. As I said, your pictures will make more sense then and consistence is important.
4 (the last point) Do what you can and don't do what you can't.
This one is about every drawing where you placed something in front of a background you haven't done yourself.
It's pretty obvious what I'm saying here, but if you want backgrounds, draw them yourself. Same goes for photos you want to put the characters into. Before you are about to do this, let me tell you that very often it looks more professional to just show the drawing how it is. Without taking the characters out and putting them inside something you haven't done yourself.
Long story short: try to make everything contained in your drawings yourself.
Well, I don't know what else I can add here except this: This one depends on what you want to do. If you're okay with your ability to draw as it is now, that is just fine.
But if you want to become better, start pushing yourself. Don't be like "man that's too advanced for me etc", just do it, and also take your sweet time if you need it. It might be frustrating but if you really want to get somewhere, you will make it through. And you will start to learn more and more if you stick to it.
Because the route is the goal, or rather the experience you get when you decide to take it.
I hope this was somewhat helpful to you
RockingScorpion
Oh, and one last thing: If you wanna start improving, maybe you can do some practice on perspective. Some of your drawings (
http://fav.me/d8gvbjk ) struggle with just that.
And of course, if you have any questions feel free to ask.
