Hey Marcel,
When you're posting your racks. A link to the rack itself should embed it in this thread. When you're asking for recommendations, being able to click on the modules is pretty helpful as no one can be familiar with every module.
Here's your Synth Voice rack. I added quotes and put a space between each slash so it wouldn't end up linking.
"https: //www.modulargrid.net /e /racks /view /1039061"
It looks good for a starter. There's the Disting, which is GREAT as a sampler pack of different functionality you might want to add dedicated modules for. An extra VCA is nice. But I would order it in the second round of purchases as well as your effects.
When you're ready, I'd add a second oscillator and small mixer. A two oscillator synth is much more powerful than one. The Intellijel Dixie II+ would pair well. It also functions as an LFO if you so wish. The Atlantis has a sync input. Sync sounds are always fun. Again... all with a grain of salt because your journey will be about what you wish to explore.