You won't get denied for a bad picture, you will get a letter telling you to resubmit a picture.
In my graphics program I set the picture to their 2"x2" size and whatever their pixel limit was. The camera I used is way over their limits.
You don't lose FOID or CCW in IL. You lose those for being addicted to narcotics, the MCPP states having a card and using mmj with a card is not considered being addicted to narcotics. The people who wrote the law intentionally used the same language.
The ISP website faqs under CCW state you do not lose anything (see picture below). They originally "accidentally" sent out revocation letters but have stopped.
Federal is a different story, but using cannabis is against their rules. But they have bigger fish to fry and hopefully that will be changed soon.
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