Hi Darrell, Happy Birthday!
Really cool song. The bass guitar sounds nice and fat, it could be turned down some. vocals sound really good. I like the echo choice. The drums sound good when the mix is sparse, but sound like they're getting squashed a bit when everything else comes in. Like a compressor might be hitting them a little hard. possibly on the master bus since it sounds like the bass guitar is triggering the compressor and keeping the drums from blooming a bit more.
If you're using one of the waves ssl plug-ins on the master bus, it doesn't have a low pass feature built in, but you can set one up using sidechain compression. You could try to highpass somewhere in the ballpark of 60hz so that the compressor doesnt react to all of the low end. Let me know if you've already done this or if you want to know how to set it up.
I hope this helps.
Hope you had a great birthday week!