I think it looks decent.
So looks as though you are playing hammer and anvil style, with that 50 man blob as anvil and the leman's being the hammer.
Interesting you are using normal infantry squads inside chimeras: Have toyed with that myself now I am feeling that Veterans are not as durable anymore (due to chimeras being fairly easy to glance to death): I think quantity over quality could be the way forward. You have 5 Chimeras which is 15 hull points in total, plus a 50 man blob and a lot of tanks: I think target prioritisation will be difficult for your opponents.
But...where is Marbo?
65pts of distraction and fear. Totally worth it.
Also, I would feel happier with more troop choices at this points level: A minimum of 5, preferably 6 though. 1 troop choice for every 500pts was okay in 5th edition, but I like to add +1 or +2 to the total, because it's now so objective dominated. I realise you do technically have 6 choices, but some are weak (PCS's).......This is maybe more my personal preferences though. I like slightly less tanks and more infantry in my lists, but that's just how I roll.
Also, totally agree you really should consider autocannons - still a great weapon in 6th edition, especially if you saturate. I always take them in my blobs now, as they can snap fire on the move if you need to go mobile, then a couple of flamers to counter any assaults on top, maybe some grenade launchers (underrated - great against landspeeders and the like).
Finally: I strongly recommend putting a naked PCS in your Vendetta: People tend to forget about them, and you can then drop them on an objective on the last turn! It has saved my ass on a few occasions. 30pts well spent!