pictures are geting rejected.. don't know why

Not keeping the original files on your computerm There are many reasons to keep the original files secure. There is no reason to delete those, even not disk space constrains. The external disk has been invented. 

I do 2 backups of my data and keep a set on two computers at different location (disaster proof!). I do not think that this is a possibility all users have, but having at least a backup just for the case of a disk failure (or an unfortunate delete) would be great. 

(this for my 5 cents of data safety wisdom)

Looking at some of your screenshots, I saw a Porsche car. If that does not get refused for quality issues, it will earn you an intellectual property refusal. Any car, phone, other element that has a look alike to a well known item, will need a property release from the rights holder (which you wont get) or you need to refrain from submitting. 

Just for the records: someone designed a yellow blue logo for a recycling event, that sounded very similar to a big Swedish furniture company, and even that the logo had a very small impact, and the promoter of the event was a non-profit association, the association got (a very nice and friendly) letter from that company asking to change the events name and logo, so that it does not look like they endorsed the event. So intellectual property matters.

If you would read through the posts here, you would discover that we need the original files that you submitted. Screenshots are too small. Post one or two images that were rejected and we can review them.