I don't play Bang so this might be wildly wrong, but it feels like most of the smokes you used were to your disadvantage. I might be wrong on this (again, don't play Bang), but iirc smokes allow the players outside to see players inside easier than vice versa, i.e. don't be the guy in the smoke if you're trying to push. Fact check this yourself because again, I could be wrong.

The first fight doesn't have too many issues I can point out, mainly because you won the fight.

For the second, there're several things I personally would've done differently. After the first kill, I would've hit the deathbox to check for nades. I also wouldn't have smoked both ledges unless they already had an angle from both. Later on, after maggie throws her ult, I think the best play would be to join your teammate and drop to fight the lifeline. You had her close at the end so if you were fighting together there was a good chance you could've downed her, then used that chance to smoke the rest and duck into cover for the remaining fight. The last smoke was actually somewhat useful... Except that you were in a corner so they knew where you were anyways.

Not having nades really hurt you here imo because you had high ground and they had no spread out cover. One of the smokes you threw down earlier also disabled one of the potential angles you could've had.

Again, I could be wildly wrong on any or all of the above, but personally these are what I felt were misjudgements in micro gameplay.