Anything submitted must flow with the blog. This includes: any type of body modification, music, hair cuts/styles/colours, clothes, etc. Anything that would modify your body and look into something else.
It would be greatly appreciated if a source is linked as well, as I don’t want copies of other modifications that were just taken from here on Tumblr and submitted to another blog. If you’re the owner, then it’s fine, but not if it’s just some random picture.
You can also, if you’re submitting a modification, tell a backstory about it. Where it was done, why you did it, what it’s about. Giving sources for the people having done it is extremely helpful, as well.
You can submit 18+ images, as long as it’s for the art of the modification and the person in it is eighteen or older. Simply submitting a nude of yourself or someone else isn’t going to settle well, and the picture will be deleted.