It never was a 9V. Just couldn't find the PF bogie in MLcad for the rendering.
Thanks for the feedback.
The B unit has sufficed few days ago and its ends match the loco's, not the other way around. I began with the roof for a cargo wagon but "hey, can I stick a battery box inside and motorize it" thought crossed my mind and it came to be the B unit that look nothing like the A unit. Then I added the ends to resemble the A unit at least in that element.
Unfortunately I dismantled the shooting place and I cannot snap a side view of the loco - it has a front to back line that I really like and it doesn't show on these photos.
As far as a double cab - that was the original idea, but I found out that I don't have the parts for 2 cabs :D I'm "working" on the idea that would make the loco a bit longer - and that's a good thing.
Like I said earlier - I'm reeeeeealy new to trains and don't know exactly what exactly is the difference between a locomotive and a shunter.
The carriages were made using the rule "work with what I have, parts-wise". What elements would you kick out?