Thanks for the listen!
If you don't mind sharing I'm curious as to where you usually get your samples like if there is a certain website or something, perhaps a variety of them.
You can always find the sample sources in the sample filenames in OpenMPT. In this particular case, most samples are from my Roland XV-5080 - I have long said that the Roland D-50 is my favourite synth, but the XV-5080 adds some serious competition to that.
The "Kawai Mix 1" patch in particular is really nice - yes, it sounds like it does in the module right when coming out of the synth, I didn't bitcrush it or anything (and it's not bitcrushed in the synth either).
So, most of my samples are recorded from hardware in my studio, or from instrument plugins (mostly Synth1, KORG Wavestation and M1).
I rarely download samples (except for effect samples like the water splash in "Outline Bees"), but most of those are obtained from freesound
I often also apply VST effects directly to the samples, so this track is not entirely "without VST effects" - they are just already baked into the samples. Some of the samples have reverb and compression applied to them, for example the first five samples have been lifted from an Amiga MOD, I resampled them and added some reverb.