Of course you can, this is even the most desirable option.

I do not recommend repeating posts using the same photos and the same text. This action may be regarded as spam and you may be blacklisted.
It would be better if you edit one of the last posts with other photos and text, taking into account the fact that you are new to the platform, I think it will be fine. But in the future, such repetitions of posts should be avoided.