02:38:143 (1,2,1,2,1,2) - feels like this ignores 02:38:623 this finish a bit with the current patterning, as well as the rising intensity of 02:38:383 (1,2) - this drum
could suggest using a 02:38:623 3/4 or 2/3 slider here to emphasize that finish (snapping doesn't matter too much since the idea is the same but yeah)
as for highlighting the drum at 02:38:383 (1,2) - I think what you've done seems acceptable, if you wanna highlight it further you could make 02:38:463 (2) - two circles but from what I see you wanna keep it super simplified so that's chill
03:04:663 (5,1,2,3,4,1) - seems to a be a bit much here, since this section 03:02:383 -> 03:05:743 is kinda a cool down part that feeds into 03:05:503 (2,3,1,2) - jump
03:04:663 (5,1,2,3,4,1) - either lower density here (add a 1/2 slider 03:04:783) or just reduce spacing so it aint the same as 03:05:503 (2,3,1,2) - so that that part can stand out more, you could also lower spacing slightly on 03:03:703 (7,1,2,3) - to help that effect