Spell attack seems low at +2? The key stat for a Sorcerer is Charisma, you list a 16(+3) for your Charisma and Spell Attack is equal to Key Stat + Proficiency, and your proficiency should equal 2[Trained] + 1[Level]. All together, I think you should have a Spell Attack of +3[Cha] + 2[Trained] + 1[Level] = +6. Likewise, the Spell DC would be 10+ Key + Proficiency, or 10+ 3[Cha] + 2[Trained] + 1[Level] = 16.
I don't see your Dragon Claws bloodline spell listed anywhere. You get that at 1st level.
Dragon Claws:Cast [one-action] verbal
Duration 1 minute
Vicious claws grow from your fingers. They are finesse unarmed attacks that deal 1d4 slashing damage and 1d6 extra damage of a type determined by the dragon in your bloodline (see the table in dragon breath). Your scales from blood magic glow with faint energy, giving you resistance 5 to the same damage type.
Heightened (5th) The extra damage increases to 2d6, and the resistance increases to 10.
Heightened (9th) The extra damage increases to 3d6, and the resistance increases to 15.
That seems pretty cool! :)
P.S. I'm the one who forgot to add their level to all their proficiency bonuses, so please double check everything here!