I like the first one the best, but they are all really good ^^ I like the third one with the purple alot to.
these are alright. Your best one would have to be your 4th one and the first one is your worst. overall the first one it way too dark in the top right corner, you should try and lighten that area up a bit and maybe use some lighter colours. Try adding some lines in to add a flow. That's all I can think of at the moment. Keep trying~ Ciao!
The Third and Fourth one are Nice Try added more effects to them Use different Stocks The style of coloring is Good Border's Good Some on the Text are too small and hard to read But they are all Good. :3