I is OK for a first attempt at SP and fun for a quick blast, but i think it would benefit more if you put the time you invested on the video on improving the map, as it is easy for the enemies or the player to get stuck in the brushes, it is lacking an exit which would tell the player that all is done in the map giving a sense of achievement instead of doubt, and it is too easy.
In this case, if you want to make a solid map the easy way, the best approach is to NOT go big: make first what you planned on 5-10 hours, no matter if it is unpolished, small or looks crappy, and from there, if you like it, you polish and release, if not dump it or reuse parts of it for the next one. That way you'll improve heaps and it won't feel like a chore, and by the time you get good, mapping will be more fun an easy.
I'll be waiting for the next one.
Last Edit: Nov 7, 2017 4:47:25 GMT -5 by cocerello