Tighter Low End on the Reference
Detection
Your mix has 3.2 dB more energy in the 60-120 Hz range than the reference, which has a tighter, more defined kick and bass relationship.
Action item
Apply a gentle high-pass on bass elements below 40 Hz and tighten the kick/bass relationship with sidechain compression or a low-cut on the bass in sections where the kick hits.
Evidence
Frequency comparison: your mix at +3.2 dB (60-120 Hz) vs. reference. Bass RMS: your mix -14.2 dBFS vs. reference -16.1 dBFS.
Next step
Check your bass and kick relationship in mono before applying the fix to ensure the sidechain is not removing too much sustain.