OK there's not much point in sugar coating this, but this isn't really going to be something you can salvage.
The only way to get this looking right is likely a full respray of both doors, and I don't mean with a rattle can. I mean with a proper compressor driven air sprayer. This is smack bang in the worst place to be doing this sort of thing, you're on two large, panels, straddling a shutline and with a cease line and a recessed door handle right nearby. A really good bodyshop guy might be able to spray it and blend but it's probably going to be easier, faster and therefore cheaper just to spray both doors and blend at their panel gaps to the front and rear wings.
You might be able to coax some level of sheen on the patch by wet sanding the clear coat with progressively finer grit (say starting with a 1200grit and working up to 2000, but I'd like to see a paint depth reading before commiting how low a grit to go, if in doubt use 2000 grit and drop if you aren't getting anywhere) then machine polishing the ever loving sh#t out of it, starting with a high cut compound and working down to finer, gentler compounds. And from about medium compound down polishing the rest of the door panels to try and even out the clearcoat surface (and you may as well do the rest of the car, the paint has some nasty swirls). But it's almost certainly going to still stick out like a lion in the Arctic.
The final result it going to depend a great deal on how even the colour coat is, Solar Mike's comment about changing humidity effecting this sort of thing is apt. There's a reason why body shops spray in controlled environmental conditions, temperature and humidity variations can wreak havoc with the curing process,
Certainly you aren't getting any sheen from the clearcoat that I can see but the simple truth is that there is no way to know how much of the colour darkening is down to the poor clearcoat finish and how much to the color itself until you're done, you could put in a huge amount of time and effort and not have much to show for it.
On the one hand if you want to have a an opportunity to get some practice in with wetsanding and machine polishing this is a great one, since it's not like you have to worry about messing it up, but if the goal is just to get it looking good I think it's time to hand it off to a bodyshop. Sorry :(