Mistie poses proudly atop a vintage Yamaha DX7 synthesizer. From Rob Puricelli (Pro Synth Network) via Facebook.
I think I also espy a Yamaha QX3 sequencer just to the left of Mistie.
These 1980s DX-era instruments loom large in my personal synth history, often as aspirational. We do have a couple of TX modules still in use along with our RX5 drum machine here at CatSynth HQ.