Hey, nice track, I liked the progression and rhythm. Contemplative. You definitely have the start to something cool here.
You will probably never get VST gutiars to sound perfectly real so maybe stick to piano for now and when you get a guitar yourself and a recording set up, you could do it for real and escape the whole situation.
For the last section, it kind of comes apart, my suggestion would be to reuse something from before but add a few tweaks to show it's moved up in intensity and then end on a satisfying chord. I can't name the chord for you but you'll know it when you hear it.
Finally, don't expect every track to be good, but do publish them. NG isn't for selling, it's for sharing.