Hi - the thumbnail and the actual rack differ - I suspect the actual rack is the real one you want us to look at!
the biggest problem - as so often - is the lack of utility modules
I'd add a starter utility set of kinks, shades and veils:
kinks is discontinued - maybe in stores stilll - wmd/ssf toolbox is a good substitute
shades is useful for attenuversion, offset and mixing - all of which are incredibly useful
veils - you can never have too many vcas - cascading so also a mixer, lots of gain so can add overdrive, or work as an external input (or 4) and is variable between linear and exponential so suitable for all types of signal
"some of the best base-level info to remember can be found in Jim's sigfile" @Lugia
Utility modules are the dull polish that makes the shiny modules actually shine!!!
sound sources < sound modifiers < modulation sources < utilities