Hi Xerah,
Do you have already some other synth stuff or just your laptop and this rack design? If you just have (or going to have) what's displayed here in your rack then I think you miss a few basic modules like: oscillators (you never can have enough of them; even though if I see the Atom and you most probably using that one), filters, EGs, perhaps a mixer and a logic module too?
What I like from your rack design is that you have left quite some free space for (near) future extension that's very good because you will need that. You might want to consider the 2*104 HP case from Intellijel instead; that one is easily to be extended with yet the same case for future purposes and has a bit more space compared to this one.
If you do most of it with your laptop then this might be fine, with the available information a bit difficult to advise you. Good luck with the planning and kind regards, Garfield Modular.
For review reports of Eurorack modules, please refer to https://garfieldmodular.net/ for PDF formatted downloads