About 6-8 months prior to your date find an amazing person to get your brows into shape. Before going to this person grow out your brows for 6-8 weeks. I know it'll be hard but put the tweezers down. Let the professional do their thing. Trust their process.
There are lots of myths about airbrush and for those reasons I no longer do it. Once you airbrush someone you can no longer touch up with anything on top or add anything other than airbrush, for example bronzer or another powder or blush. It doesn't last as long despite what people say. There are no famous makeup artists that I admire that use airbrush and if you follow any of them you'll see that too. Don't be fooled by this trend that people for some reason can't let go of, it's like 80's hair time to move on :)
If you choose to go tanning please stop 3 days prior in case you burn.
If you are just going to be outside in the sun naturally, be mindful of tan lines especially if your dress is strapless.
If you choose to do a spray tan test out the place/formula 3 months prior to see how it affects your skin and the color.
Get in good skincare habits before the wedding at least 6 months prior so your skin is in a regimen by then. I highly recommend and use myself MAC volcanic ash exfoliator. It is amazing and works on all skin types!