This map needs a bit of a makeover...
1) Text for the territories isn't easy enough to read and this is the large version?

Also, try to get the Elisworth Mountains label straighter - vertical does not work
2) Putting the continent names on the map looks messy - just colour-code the legend - it would be much better.
3) I don't know where the Transatlantic mountains are, unless they are a part of the texture. Just put some mountain graphics in and leave a space in them where you want to make them passable (that would also allow you to remove the rather messy note in the legend)
4) The line colours are too harsh. Tone down the black to grey and also blur them a bit to remove some sharpness. The cyan doesn't look too great either unfortunately - is it necessary? Also, the lines are too straight and jagged in places - allow them to curve more so that the map is easier on the eye.
5) I see you have images in the background. You need to make them to stand out more if they are to have any value
What I do like is the texture but I'm afraid that's about it. Out of interest, what program did you use?
Anyway, there's some constructive criticism - make use of it. Also, perhaps take a look at the Arctic map - you might gain some good ideas