Need Some Advice Please

so today my brother told me i look too skinny now, that i look frail, and my arms look too skinny. but i can finally do push ups, i can hold myself in a yoga crow pose. I do a fair amount of cardio mixed with body weight exercise and weights, not super heavy but 8-25lbs depending on which muscle group it is. I work out 45-60mins 7 days a week.

If it were anyone else saying that other that him i would blow them off. but he is really about fitness as well and i trust him to be honest with me. he helped push me when i first started out to loose weight. his friend also agreed that i was looking a little "Ethiopian" i still want loose fat in some places and i know I cant spot reduced so im not sure what direction to go in. they suggested i do less cardio up my calories and continue my strength training. I dont think I look too skinny but maybe i dont see myself the same way as the rest of the world. Also I average about 1700 calories a day.