Okay, so first of all, make sure you fill out the proper form. If you've been here over 60 days, don't fill out the "new resident form". Even if your brought the firearms into the state today. Ask me how I know. Rejections and requests for photos will come immediately, everything else takes about 3-4 months to be approved. Again, ask me how I know. Certain firearms will trigger requests for more photos: whole firearm, magazine and release, serno and make/ model. Don't provide these unless prompted. The three guns of mine that got flagged were a Chinese SKE, Chinese Mosin and... Taurus G2S.
The rest of my firearms went into an approved status within a couple weeks. Those three sat "in progress" for like 90-120 days or so. Then all of them, even the approved ones switched to "in progress". Don't panic. That's your signal that they're sending your hard copy paperwork, which will show all the firearms you've registered. Once you have that paper in hand, you're good. You can get your CCW, purchase firearms and ammo, etc. (Provided your license is valid and up-to-date). As far as I know, ask of my firearns are still "in progress" on CFARS. I stopped checking like a week after i had my hard copies, since that's all that really matters.
LMK if you have any more questions. This is still a recent experience for me.