Hello, I have a couple things to add. I'd say that you're placement of the abs is really good, just the forms don't feel believable. 1. though they're not perfectly symmetrical, I think using the same shape for each ab tricks our brain into assuming they are. So I'd recommend changing up the tendonous intersection's start and stop points. 2. A minor thing, but usually men's abs are roughly the same width, while women's create a violin shape. More generally, I'd widen where your abs attach to, as it looks like you're leaving room between the obliques and the abs. 3. (optional) Although shading isn't the focus, if you want your forms to pop more, I'd add variation in your terminator. Take the image labelled 6.2. To me, it looks like a box-y shape for the abs, when the reference shows a more gradual change at the bottom and a sharp edge at the top (of the abs). Making the terminator thicker or thinner depending on the form shape will elevate your drawings. Finally, I did some drawings to put my money where my mouth is. Respond if you need anything else. - Dwight

I think the top abs for the male model are too narrow. They appear to we wider on the photo references. Good job though.

I love your layout design and composition in every single one of them. I would say your weakness is color, especially green. All your green looks very mottled with over saturated greens and unnaturally muddy greens combined. I notice for most digital artists green is a problem. Try to do life sketches of plants and trees with digital media. The yellow of the leopard is mottled too. Color harmony is not there either, except your 3rd and 4th piece. I recommend Marco Buccio’s color course here for color theory. His content is excellent and he explains everything so well! Also do some master copies of editorial illustration with a focus on how colors are used.

Will the animals at the top be behind the letters, or in front? I ask because the letters will cover up the heads of those animals if they are behind. Also, the penguin seems to be the only animal that is not to scale. You might want to define why that is. Other than that, I think its a nice layout :)