As a 'sometime designer' who has dabbled in MJ quite a lot, I'd suggest taking the outputs and then running them through something like Photoshop and tweaking t

As a 'sometime designer' who has dabbled in MJ quite a lot, I'd suggest taking the outputs and then running them through something like Photoshop and tweaking them in there to get them to somehow match a bit more - eg. you could add a texture, or halftone them, or alter the hue and saturation to standardise them a bit. Whilst MJ can texturise things, it does tend to fall over a bit when doing so. Good luck!