How many things are wrong in this "artist view" of the TRAPPIST-1 system? There is a this poster on the NASA site

(

that irks me. Of course its an artist's fantasy, but since it is on a NASA site, I see people considering it as scientifically accurate. So, beyond the two obvious "In which direction(s) is the sun", and "OMG these two planets are crashing into each other! Before we crash in the debris!", what else is wrong? Tides? Roche's limit? Atmospheres ripped out?

Also, since 1e is an intermediate planet, it is possible to have the other six planets all conveniently placed in the same area of the sky?
The 2 big planets are probably f &amp; g and they don't look up to scale to me. While f is the size of Earth, or almost 4 times bigger than the Moon, but it's also further away, ~ 1.3 million kilometers, as opposed to 400,000km for the Moon. So I would say f will be somewhat larger than the moon but not anywhere near what the poster shows. G will appear even smaller than f because it's further away.
I haven't looked at the orbits in details but I think that sort of event should be possible. Trappist-1e being intermediate planet makes no difference. 
As for "where is the sun" - it appears to be somewhere to the right, probably below the horizon. That makes sense because any base would probably be along the terminator.