I'm with Zeealex here, the depth perception is a little overwhelming to the eye.
The issue with using HDR images as a background, is that they themselves were usually photographed with an "All-in-focus" Landscape shot, which means they in themselves are flat in colour but full of noise. The tiny teeny pixels that are in the High-Dynamic-Range fight against your eyes to pick out the true focal point, which would be your Dino-Liz!
If you soften it, and ensure that both foreground (Lizzy) and background (HDR Forest) match in both noise, and colour, you will be bang on.
Positively, your crops are really tight, and the visual concept of it is really clever. Basic composition is good, the placement of everything feels very balanced.
Final Advice,
Add an overlay black border to bring your viewers eyes centre, then soften the border to a really low opacity. To make Lizzy really pop out of the image, and create a peception, lower the contrast by a tiny percentage on the background and get the noise levels right for both images. You can always make a 'Highlights' and 'Lowlights' layer to use a 40% 40% soft brush to paint whites on highlights, and blacks on the shadows to develop even more depth.
Alternatively, go the way you were going and use a heavy Noise reduction tool to make it look painted, and then use a colour blend!
Great work all round, and really good concepts.
db1machine
i used a lot of warping and layers with varying colour over lays and blurs, you like?
