TBH I think that changing the evolution levels is a great idea.
One slight problem I see though, is that some Pokemon that can now be caught
earlier, are as a result evolving earlier, despite having relatively strong evolutions.
For example, Magnemite evolves only one level later than Machop, but has an evolution
with a 60 extra base stat total, while Mankey who evolves 3 levels earlier than Machop
has an evolution with a 50 higher base stat total.
Obviously it's your decision, those are just my thoughts on that particular example,
an example I've seen only on paper (well monitor) as opposed to actually playing it.
I doubt that you'd assign levels willy-nilly, so I'm sure you can judge at this stage
particularly whether they feel overpowered compared to other Pokemon. Other than
that, as I said before, I think it's a great idea. Slowpoke evolving at 29 is a godsend!
It always bothered me getting it up to 37 from an egg.
Awesome!
Just one stupid question...How did u change the battle bases and background...I ask cause i can't find how to do this!
There's a tutorial just for this:
https://www.pokecommunity.com/showthread.php?p=7681827
I'd check the tutorials if I were you, you may find things you were going to ask other people
how to do!