You're right in your comments :-) Few other things: + forward factories + offensive ACU, well used to defend initial attack + good radar coverage, especially after you build that radar in the middle, however poor scouting, so you did not know what the dots are + good job attacking resources first, not allowing any chance of comeback for him
- idling units, especially in the beginning, you were not attacking, they just sat around - idling engies, especially first few minutes, you had 3-4 idling ones at a time very often - slow mex upgrades, after 20 minute game you only had 3 t2 mexes - reclaiming would considerably help you to boost your eco
I don't think you were too late with T2, but your passive stance in the beginning allowed your opponent to be there early...
What I missed out:
1.) No environmental reclaiming - very bad
2.) No air attack - bad
3.) T2 too late - bad
4.) Lack of additional scouting - bad
Some comments?