Medium size and darkvision are normal features.
Ability score increases of +2 and +3 are higher than normal. Most races have +2 to one ability score and +1 to another. Mountain dwarf has +2 Str / +2 Con.
An extra 5 feet reach is somewhat powerful. You can use this plus a reach weapon to hit targets 15 feet away. Even a normal weapon, reach ...
I think that as it stands the hombrew seems quite unbalanced (overpowered) for a few reasons:
ASI of Dex +2 and Con +3: Very unbalanced. the ASI spread for most races is normally +2 and +1. Some only have a +2 such as the Kenku or Kobolds. If you add +3 to any ability score I would impose a penalty or -2 to -4 depending on the overall ...