No it's alright, as long as you deleted then uploaded the right images It's done now. Using the regular add function is fine, but if you use the Edit then Replace functions it compares the images for us Moderators so that it is easier to see at a glance if the image you're uploading is better, not to mention if you just use the delete image function we just think someones trying to delete the images. There is a page that shows pending changes and if you get anything that is rejected or you replace any images from here on out you'll be good.
Again, don't worry about it. It's also a lot easier that you're willing to read and understand it. We get people all the time who ignore everything else around them, make their changes or requests of us then just leave. They don't bother to do any checking nor do they care to follow up. So at the very least you're way ahead of the average user. I also want to point out there's nothing necessarily wrong with that, we can't expect every user to be as invested as some of us, but it certainly makes our jobs a bit easier when we get nice people like yourself.