Nice start - the land shapes are pleasing. But you don't show much evidence of the view being any particular projection; have you thought at all about how this maps to a globe?
Are there islands that just aren't shown at this scale? One might expect a bunch more of several different sizes.
Think about how the mountains got there. It could be just your choice of a single symbol type, but it looks like these are all new, young, sharp peaks - is that what you intend? Do you have access to some compatible symbols for older, rounded mountains, or for hills ? Most of the ranges bisect a landmass - plausible scenarios for mountain formation might more to edge landmasses. There's nothing inherently bad about any one range.
Welcome to the Guild and thanks for contributing right away - we appreciate that. Enough that you deserve a starter bit of rep for the willingness.