Oh that's fine, I wasn't too concerned about the reply, I've been busy.
Well, what me and Le Pug have is well, we had to restart the hack several times due to really bad glitches but Le Pug came up with the idea to get a github account and store back-ups in there in case another glitch pops-up we wouldn't be far behind from our last back-up. And back-up constantly, it can help minimize many glitches.
Oh, I'd feel bad to if you got someone to overwrite hard work by others too so I completely understand, I just saw that the pokemon icons for the newer ones weren't inserted so I'd figure to volunteer. And thank you for looking at Pokemon Discovery and enjoying it as much as you did, well screenshot-wise anyway. I swear that half the hack is basically ASM stuff. I dunno how Le Pug does it, and believe me, I tried. :P
Oh, and I can't do any of those things that great but I can point you towards other people. For titlescreens, ask someone who has made a titlescreen, I think DestinedJagold can help, Shinx and Spheal too, they are very well known and talented hackers. For Worldmaps, I'd go to DestinedJagold or a very good worldmap maker, there's bound to be one in the Graphic Art and Design or whatever section. For tile insertion, while Le Pug is very busy like me, he may be able to give you pointers, he has a great tutorial too btw. Those are just the first people that came to my mind. :/