Love the mockup.

Those graphics are very you. Bright and colorful... hmm
I'm not too fond if the way you shaded the cacti though. There may be a light source coming in from the top, but still, I think it could use some highlights in the flat area, or maybe that will make it too intrusive.
The enemies also kinda blend into the background. Or maybe I'm going blind, somebody back me up on this.

Was the pirate game in gamemaker, or something else?

Hey Syn, wassup! 



lol, ANOTHER edit. I tried making the lightning lighting radius larger, but I didn't like the way that turned out. I did push the moon back some, though. It's starting to grow on me

Don't pillow shade, it screws with some of the volumetrics. I don't think the colors are too saturated personally, but I would definitely go with a wilder palette to make things interesting.

So yeah, what Stwelin said.

Changed stance and added in right limbs.

looks better.

Are the arms too big, maybe?

The arms themselves, being too big or small, well, at this point, it's a style choice, and I don't personally think it's too big.

However, the (dino's) right limbs, assuming this piece is not isometric, would appear smaller than the closer left ones, with the basic rules of perspective and all.

I hope to see you color it in soon. Methinks it could be smaller, as I wouldn't attempt to color something this large. XD

Oooh, brings back fond memories of Earthbound, the trees.

As for the water, I would go for more buffers of water, from the really sandy shallow white frothy waves to some nice deep blue.
I also argue against myself on this point, as the water goes stylistically with the rest of the stuff. But you know, that's up to you.

You know, pink water usually isn't a good sign for the environment .

Also, that's a really quick-n-dirty way of making a tree... but it still looks nice. Hrm.... where can I use this.... hahaha.