everyone is their own harshest critic
you seem to be a little bit too hard on yourself. I honestly can't find really anything wrong with this track at all.
After all, even if you may be cocky....you are easily the best RnB producer on NG...if not in hip hop alone. NG is generally too amateur to give advice to help you as a high level producer to improve. No offense to anyone. but I do atleast hope your getting advice elsewhere in addition.
You may want to replace FL keys with a more realistic sounding piano- such as 4Front Piano, DSK Acoustic Keys, or a steinway soundfont. Also what did you use for the guitar strums? They sound really nice and clear!
I guess my second criticism would be more from a professional realm. You use the same vintage drum samples in all of your songs.....Several of your synths are noticeable sytrus presets (even if they have some tweaks). Honestly, this track is very professionaly produced, sounds fucking excellent, so i couldn't really give a shit. But it's certainly something to consider at your level, investing in some new sounds, because a label might think "this sounds a bit too FL" and your stuff might not make the cut just for this reason. Not saying that it can't get by though of course (lol soulja boy).
One thing for sure is you definetly exceed the compositional standards for your average RnB/hip hop producer.
You always impress me with your infinitely deep melodies, I dont really ever listen to RnB, but who would be better at you in this department? Not to mention, you are the master of the sliding tool, and you make some awesome drum patterns combined with the traditional vintage samples and the orchestral sounds.
For sure, it contains the danceable, head boppable elements found in RnB, while it contains an awesome set of chords and melodies for anybody to enjoy. Lots of layers going on here, all distinguishable through crisp EQ levels...lots of activity, yet room to still lay a rap over. Some of the parts are less layered, allowing room for bolder vocal sections. That in its self is impressive, it's too common to see a song in this genre that just has a basic drum beat, a bassline and a lead voicing but you've brang the entire "RnB orchestra" along.
As for the choice of synths, I absolutely love it. Beautiful organs and piano in combination, the chords feel so warm on my ears. I normally hate the sytrus saws, but you make them sound like gold. The cerberus saw sounds real fresh in some parts, and I love those whistling synths, they put a nice glaze over the track. Give the tools to the right person, and they will put them to use!
The ending was beautiful too. Really shows your ability to design a beautiful composition. I would love to see you make an ambient or classical based track. The chords and melodies in between with a thick decaying reverb makes for a beautiful finish.
If you're not selling beats already, then it's a damn shame! Sorry I couldn't think of much advice, but I see this track as 99% perfect, I'm sure you girlfriend would love this as a gift! Good luck :)