I think I out did it all (stupidity wise)

[Lost81c10]

In a rush to try to get my truck started after putting it back together this weekend, I was connecting my battery as the last thing just before starting it. Hooked up the negative and I went to hook up the positive and it sparked, well tried it several more times until suddenly a puff of smoking came from this area of the pic, don’t know what it is. I was scared thinking I might have fried things up.
But here is the stupid part, after 20 minutes of checking and rechecking my grounds I realized I had plugged the negative cable to the positive and was trying to plug the positive to the negative…
After correcting this with no more spark issues, it started.
Do you all think I might have damaged anything especially where the smoke came from and what is it by the way?
Don’t know if this might be related but my one electrical issue is with the passenger turn signal, the light bulb kept going out when I put it back in the lens. Replaced the bulb but it got burnt when I turned the light on. Thanks for everything you can let me know and hopefully I can be put at ease.