For making such original drawing (I can see lizards striking poses, fighting, killing and wounding... but I can hardly see them on a family walk), you really deserve a fav
.
So... while today - probably - many people say that your Tyraeli remind them Na'vi from Avatar, to me they remind more of Sorin race from Dark Planet computer game and Lizardmen from Warhammer Fantasy. The latter because of this caste system, based on biological diversity (Arazewo and Aldaitsamu are much like Skinks, Aluerkawo are much like Sauruses and Accomandanih may be the equivalent of Kroxigors). The former because of the general idea of lizard race, living in peace with nature, who fight against human invaders, willing to colonize "their new planet". However, Sorin are not savage-like, but live on medieval level (and even have magic at their disposal) and fight with such weapons as swords, bows and axes. While Colonist (human invaders they fight), unlike humans in your world, are actually high-tech (they have stuff like power armours, battle droids and so on).
I don't mean anything like "you're not original" or "you stole from them", not at all... I like your Tyraeli, and although they fight against my own kind, I hope they will defeat human invaders
.