Here's a 100 point squad I sorta made on the fly

Dark Hellion Marauder on Swoop x2 10 points each
Grand Admiral Thrawn 37 points
Mas Amedda 8 points
Snowtrooper with E-Web Blaster 18 points
Stormtrooper x2 5 points each
Ugnaught Demolitionis x2 3 points each.

99 points total

Unfortunatley even I can tell this is not the greatest squad (please keep in mind I'm fairly new to the game) and that I'd probably be better off making it a 150 point squad. Please tell me what you think.

Not bad at all for someone new to the game. It's a great use of abilities and commander effects to make a hard to play piece actually playable. As you get more familiar with the game and pieces, I'm sure that you will develop some top notch squads as you already understand the basics of a build.

As far as the squad, there's not really much that you can change to make the squad better while also keeping the same concept. The one thing you need in a Thrawn-swap squad is a lot of activations and the only way to increase it is to change out 1 Stormtrooper (plus your 1 extra point) for 2 Ewoks/Ugnaughts, but that's not really going to do much as you'll go from 9 to 10. You can't take out a Swoop Bike as you'll need as many of them as possible to be able to swap.

nice squad, rye, as nitru suggested, you should take out the 2 stormies and put in 3 ugs/ewoks, but thats about the only way to improve this squad. I think this squad should work well at 100.