Continent Structure Suggestions?

[Larb]

My main suggestion is: Work on a bigger canvas and DON'T try to fill it. Trying to use all the available space is why it looks like a block. You can always make your canvas bigger if you need to go further in any particular direction.

[Khaalis]

Thanks for that. I have been trying to work with a 20" (6000) x 16" (4800) canvas at 300ppi. Still not seeming to get a shape I like that looks decent under the 2 land mass constraint. I am thinking I need to start with something like Pangea for inspiration, trying to recreate it, chopping off India, Antarctica and Australia as the 2nd land mass.