Welcome to my art thread! I will try to as many as I can in one day. So, here is the first OC transformer I drew, he is Dynobite! Dynobite transforms into a cyborg mechanical T-Rex. I will upload his alt mode soon.
Here is Apeways, turning into a mechanical crane. His design is inspired by Hightower but I did a huge change on his limbs. He has magnetic hands and he is sort off like a successor to hightower.
(Sorry about the position) Here is a combiner made of things you see everyday. Components: Left arm is elevator buttons and trash cans Right arm is trash cans, stop sign and other signs. Right leg is half of a house and a road/ramp Left leg is half of the same house and a chimney and again a road/ramp Torso is traffic lights, and other arrow signs Also find the hidden restaurant references!
(Again sorry about the position) The female dinobot, trasus! Trasus turns into a Cybertronic Stegosaurus-type Dinosaur and has two weapons. Note that the tail is NOT part of her head, and the tail is mounted on her back.
You can only determine that, if you have all the facts. For all you know, the artist could have just done them as quick concepts, and as such, they're rough.