Hi and welcome to the forums
Don't worry there's plenty of time to master the awake but drowsy thing, it's still early days yet. What you can do when you're ready is slowly reduce the time spent rocking over a couple of weeks and start to put him down just that bit earlier.
Now A time is calculated from eyes open o eyes shut, so what I can see initially is that your last A is too long. I would suspect he's OT by the time BT comes along. Especially after a short nap, you're hitting 2hrs + for that last A aren't you? Average A time for this age is around 1hr20-30 max, but after a short nap I'd bring that down to an hour and see if that helps with the BT? I much prefer UT at BT than OT!
That being said, I hate UT during the day, which I suspect is going on with your first nap. I think you're working off a 1hr 15mins A? I would try and increase that by just 10mins for now and aim to be asleep at 1hr 25mins and see if that helps? It may take some tweaking on that bit to get it right but we can definitely work o that too. Looks like you're getting a good solid nap later on after 1.5hrs A after an hour nap so I'd keep that as is.
If you could try both of these and let me know how you go? Then we can take it from there. If you could log your days in real time for me we'll keep tweaking until we get it right for you xx