1st
like this. nice bangin track with some atmo choir like type of synth in it. quite nice. production could be better, i think. sounds could be more warm and also phatter. some eq work should help and also reverbing some sounds could help.

2nd
not bad. bangin techno with rollin percs., sounds a bit boring after while. production part of thing need more work i think. it sounds too overcompressed and also sounds could be separated a bit better. kick could be really bangin and much warmer. missing some more depth in it.

3rd
first i need to say, i am not into this oompah bass synth. quite like that bell like kind of synth, it sounds nice there.production wise, i missing some more top end. something little crunchy in hi mid and also hats could be more sharp,.