It's really not hard to do any of this. And the idea that someone would pay you to do it is laughable.
It takes minutes to convert a Minecraft world, import it into your favourite, set up textures and materials (so Glowstone and such actually glows) and then render it.
If someone is looking for someone to just do what you're offering here, then they shouldn't be running whatever project they are.
Now I'm done complaining... Allow me to give my actual input on your work.
Average. For Mine-Imator.
There is hardly any detail added, especially in the background.
Take a look at this frame from the recent animated film, Finding Dory.
http://img3.looper.com/img/gallery/easter-eggs-you-missed-in-finding-dory_2/herbie-the-love-bug.jpgFirst off, the background is filled with a VW Beetle, and further behind, you can still see rocks and coral. And the same goes for the front, rocks and coral to fill the void.
There's also the herd of fish swimming across the lower middle.
There is no need to offer incomplete work.
Before offering work, especially if for money, you should make sure your work is of professional quality.
Also, my last sort of point is that if you think these:
http://i.imgur.com/GPwPXJn.jpghttp://i.imgur.com/yz4B1xw.jpgAre good enough to display in a portfolio, you may want to reconsider what you're doing.
