Looks very good to me! I have a very similar reactor, but made it out of a gravel cleaner and let the CO2
run through an airstone first.
Yours should work as good as mine. I just regret now, that I didn't get the idea with the regular bottle and bought a gravel cleaner instead
Previously: 2x 10gal tank, 45gal aquascaped, 70gal aquascaped
Currently: 16gal FW, 40W CF, ADA Aquasoil Amazonia II/Tahitan Moon Sand, PH 6.5, kH2, gH 4