I quite like these, and I can see you improving with each drawing

I really like the PMD ones, I think the colouring is pretty good and I like a picture that fills a whole page! Would have been nicer if the picture was taken at a better angle, but that's neither here nor there. Your Latios and Latias have also been coloured in well, good choice of shade

And I definitely love your Reshiram, there's so much going on with its shape I think you've done really well to get all that detail in.
Perhaps you could try and make your lines a little more fluid? Try and use your wrist to curve the pencil once you've marked the general outline of the shape, and you only have to press on lightly otherwise it gets harder to control the pencil. You could try and use tracing paper for this if you didn't want to make preliminary marks on the page and have to rub them out. Sometimes the lines won't go away properly and the indent gets in the way! You could also try using mixed media, pencils are all well and good but I never really was able to get on with them because I tend to press down to hard or not enough...I don't know how you feel about paint? Can be messy and fun at the same time, and you don't have to worry too much about evenness.
I agree with marioluigifan05 about the Servine, and how it's like the original art for pokemon. Cute and chubby!
I didn't feel like lurking and thought I could try and give you a few tips and stuffs

So, yeah! Keep it up and you'll get even better. Start experimenting
