Looks nice... I've tried the plugin but can't wrap my head around how to do any level editing at all with this plugin. You don't really see what you're doing in the Construct interface.., or something i've missed? How do you edit the levels and place objects around? Care to enlighten me? you can send me a PM.
X and Y positioning is all handled within the viewport of Construct 2, Z positioning however needs to be done manually by editing Q3Dmodel's property. There's a tutorial for it on youtube! Just look up Q3D Construct 2 tutorial, and you'll be set in no-time. ^^
Good luck with your project btw! I like the style!