The only reason your MIDI is “toy sounding” is because of the sound source you are using. My guess is that sound source is a very inexpensive GM set. Get a good sound source, learn MIDI and you can make some very nice music. In fact a number of forum members have mistaken some of my MIDI performances as RTs.

Now I am not knocking RTs and in fact I use them also but I do get unnerved when someone makes these kinds of accusations about MIDI.

Whenever I get something stuck in the back of my throat, I dislodge it by drinking a beer.
It's called the Heineken Maneuver.

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware