Hi,
Here is a group pic of all the figures in the campaign with an approximate size for the digital sculpts. The Evil Elves haven't been unlocked but will be released at some time if they are not in this one. The large Djinn is 50mm tall, so will be about 10' tall in 28mm, you can add him for a single figure pledge, just make it £8 instead of £5 after you've clicked on the reward if you want him on his own.
Kickstarter link:
https://www.kickstarter.com/projects/929431841/end-of-times-miniatures-range