I can increase the limit on the number of pics/images you can add in a post.
In the very early days of the forum we got the odd joker who thought it fun to try and do what we call now a DOS (denial of service) attack by swamping us out with loads of images.
There's nothing stopping you from making several posts - one after an other.
Gives us a pause between each set of pics.
I think the end result is the same - we all get the picture (
sic) a flavour of the event

If there's a disparate demand we can increase the limit.
But the reason why the forum rejected the images was that they were/are too big....
Get them down to around 600 KB (or 24 x 18 cm) in size.
We?I was looking at mods that automatically edited attached images down to size.
On paper they look good, but getting them to work within this forum is not so easy and they won't do anything for url posted images.