OpenXml : PowerPoint . Add an Image and a Title into a Slide

Hi all,
I'm using OpenXml for the first time  and  I've tried  for several days to create a simple presentation in c#.

my goal is: given a list of images as input ,create for each one a slide with a title (image name ) and the image as picture.

Currently I can create either  a slide with just a title or a slide with just the image, but I'm not able to create one with both the elements :-)

Can you help me please ?

Thanks in Advance

Davide