Sorry for not responding sooner. It would be nice if the forum automatically tracked the threads I posted in but I'm sure there is a way to subscribe somehow I have yet to figure out.
For the lakes with no sea exit. I would say it is up to you as long as you know realistically the lakes would likely be salt water and resemble the dead sea. This means the lakes would not support much life at all and their rate of evaporation would have to match the inflow levels or it would otherwise fill up until some of it could drain to the ocean. There are story ways you could create to get around this like saying that maybe the lake drains into an aquifer and the water springs up elsewhere thus allowing it to have enough flow to stay fresh etc. You could also just disregard it :p If it were me I'd probably attach most of them although having a single dead sea like area may provide some interesting story opportunities!
Even though it is a minor change I highly approve of you moving the floating frame. Changing its colour also helps it stand out more which I am sure was your intention.
Those two land masses in the west are pretty interesting actually. If it were my map, I'd just move the two pieces of land south and maybe move the frame to the north to show them off Here I must apologize and express my respect for your beautiful map. I totally butchered it to show you what I mean. I understand you probably won't do this because you likely have reasons for where certain landmasses are and have an overall picture of your world. I'm just an obsessive who enjoys photoshop sometimes!. So here is what I mean (again, totally only as a suggestion with which you can do whatever you want and freely and guiltlessly disregard lol I hope you can forgive! :
Anyways, I see what the others said about the more saturated colours and I think you struck a good balance with toning them down a few notches. I would defer to the opinion of some of the more experienced map makers on here on this but have you considered varying the text colour? Maybe some of the land masses could have a more ochre coloured text instead of the black so that the city names and region names stand apart more easily. That is of course not to say there is any note worthy confusion now
I look forward to seeing this map evolve!