Some guidance required to post galleries around here

I have LOTS of images which I have already uploaded to an image host and shared at a particular forum. These pictures come under the category of "Non nude babes".

There are few things I want to know.

The image host I am using is trustworthy (I have been using it since 3-4 months now and never had any problems with it) but I have not seen it around on this forum.

I don't want to upload the same thing again to different host, nor want to create zip archives (but this can be taken care of if absolutely necessary).

My doubt is, can I post sets of 15 images (or more) per post directly? (by creating a new topic and keep on posting in it)

Or do I have to create separate topics?

Basically I have a mix collection kind of images of brazil babes (Beach candids, ass shots, hot photos etc) of different sizes and quality.

Please guide me as to how I should post them here so that I can share them with others?

Thank you :)